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Sebastian Redl904c9c82010-08-18 23:57:11 +00001//===--- ASTReader.cpp - AST File Reader ------------------------*- C++ -*-===//
Douglas Gregor2cf26342009-04-09 22:27:44 +00002//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
Sebastian Redlc43b54c2010-08-18 23:56:43 +000010// This file defines the ASTReader class, which reads AST files.
Douglas Gregor2cf26342009-04-09 22:27:44 +000011//
12//===----------------------------------------------------------------------===//
Chris Lattner4c6f9522009-04-27 05:14:47 +000013
Sebastian Redl6ab7cd82010-08-18 23:57:17 +000014#include "clang/Serialization/ASTReader.h"
15#include "clang/Serialization/ASTDeserializationListener.h"
Douglas Gregor98339b92011-08-25 20:47:51 +000016#include "clang/Serialization/ModuleManager.h"
Chandler Carrutha2398d72011-12-09 00:02:23 +000017#include "clang/Serialization/SerializationDiagnostic.h"
Argyrios Kyrtzidis0eca89e2010-08-20 16:03:52 +000018#include "ASTCommon.h"
Douglas Gregor98339b92011-08-25 20:47:51 +000019#include "ASTReaderInternals.h"
Douglas Gregore737f502010-08-12 20:07:10 +000020#include "clang/Sema/Sema.h"
John McCall5f1e0942010-08-24 08:50:51 +000021#include "clang/Sema/Scope.h"
Douglas Gregorfdd01722009-04-14 00:24:19 +000022#include "clang/AST/ASTConsumer.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000023#include "clang/AST/ASTContext.h"
John McCall2a7fb272010-08-25 05:32:35 +000024#include "clang/AST/DeclTemplate.h"
Douglas Gregor0b748912009-04-14 21:18:50 +000025#include "clang/AST/Expr.h"
John McCall7a1fad32010-08-24 07:32:53 +000026#include "clang/AST/ExprCXX.h"
Douglas Gregor5f791bb2011-02-28 23:58:31 +000027#include "clang/AST/NestedNameSpecifier.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000028#include "clang/AST/Type.h"
John McCalla1ee0c52009-10-16 21:56:05 +000029#include "clang/AST/TypeLocVisitor.h"
Chris Lattner42d42b52009-04-10 21:41:48 +000030#include "clang/Lex/MacroInfo.h"
Douglas Gregor6a5a23f2010-03-19 21:51:54 +000031#include "clang/Lex/PreprocessingRecord.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000032#include "clang/Lex/Preprocessor.h"
Steve Naroff83d63c72009-04-24 20:03:17 +000033#include "clang/Lex/HeaderSearch.h"
Douglas Gregor668c1a42009-04-21 22:25:48 +000034#include "clang/Basic/OnDiskHashTable.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000035#include "clang/Basic/SourceManager.h"
Douglas Gregorbd945002009-04-13 16:31:14 +000036#include "clang/Basic/SourceManagerInternals.h"
Douglas Gregor14f79002009-04-10 03:52:48 +000037#include "clang/Basic/FileManager.h"
Chris Lattner10e286a2010-11-23 19:19:34 +000038#include "clang/Basic/FileSystemStatCache.h"
Douglas Gregor2bec0412009-04-10 21:16:55 +000039#include "clang/Basic/TargetInfo.h"
Douglas Gregor57016dd2012-10-16 23:40:58 +000040#include "clang/Basic/TargetOptions.h"
Douglas Gregor445e23e2009-10-05 21:07:28 +000041#include "clang/Basic/Version.h"
Douglas Gregor0a0d2b12011-03-23 00:50:03 +000042#include "clang/Basic/VersionTuple.h"
Daniel Dunbar2596e422009-10-17 23:52:28 +000043#include "llvm/ADT/StringExtras.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000044#include "llvm/Bitcode/BitstreamReader.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000045#include "llvm/Support/MemoryBuffer.h"
John McCall833ca992009-10-29 08:12:44 +000046#include "llvm/Support/ErrorHandling.h"
Douglas Gregorcfbf1c72011-02-10 17:09:37 +000047#include "llvm/Support/FileSystem.h"
Michael J. Spencer03013fa2010-11-29 18:12:39 +000048#include "llvm/Support/Path.h"
Nick Lewyckyb346d2f2012-04-16 02:51:46 +000049#include "llvm/Support/SaveAndRestore.h"
Michael J. Spencer3a321e22010-12-09 17:36:38 +000050#include "llvm/Support/system_error.h"
Douglas Gregor2cf26342009-04-09 22:27:44 +000051#include <algorithm>
Douglas Gregore721f952009-04-28 18:58:38 +000052#include <iterator>
Douglas Gregor2cf26342009-04-09 22:27:44 +000053#include <cstdio>
Douglas Gregor4fed3f42009-04-27 18:38:38 +000054#include <sys/stat.h>
Douglas Gregorcfbf1c72011-02-10 17:09:37 +000055
Douglas Gregor2cf26342009-04-09 22:27:44 +000056using namespace clang;
Sebastian Redl8538e8d2010-08-18 23:57:32 +000057using namespace clang::serialization;
Douglas Gregor98339b92011-08-25 20:47:51 +000058using namespace clang::serialization::reader;
Douglas Gregor2cf26342009-04-09 22:27:44 +000059
60//===----------------------------------------------------------------------===//
Sebastian Redl3c7f4132010-08-18 23:57:06 +000061// PCH validator implementation
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +000062//===----------------------------------------------------------------------===//
63
Sebastian Redl571db7f2010-08-18 23:56:56 +000064ASTReaderListener::~ASTReaderListener() {}
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +000065
66bool
Argyrios Kyrtzidis62288ed2012-10-10 02:12:47 +000067PCHValidator::ReadLanguageOptions(const ModuleFile &M,
68 const LangOptions &LangOpts) {
David Blaikie4e4d0842012-03-11 07:00:24 +000069 const LangOptions &PPLangOpts = PP.getLangOpts();
Douglas Gregor7d5e81b2011-09-13 18:26:39 +000070
71#define LANGOPT(Name, Bits, Default, Description) \
72 if (PPLangOpts.Name != LangOpts.Name) { \
73 Reader.Diag(diag::err_pch_langopt_mismatch) \
74 << Description << LangOpts.Name << PPLangOpts.Name; \
75 return true; \
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +000076 }
77
Douglas Gregor7d5e81b2011-09-13 18:26:39 +000078#define VALUE_LANGOPT(Name, Bits, Default, Description) \
79 if (PPLangOpts.Name != LangOpts.Name) { \
80 Reader.Diag(diag::err_pch_langopt_value_mismatch) \
81 << Description; \
82 return true; \
83}
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +000084
Douglas Gregor7d5e81b2011-09-13 18:26:39 +000085#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
86 if (PPLangOpts.get##Name() != LangOpts.get##Name()) { \
87 Reader.Diag(diag::err_pch_langopt_value_mismatch) \
88 << Description; \
89 return true; \
90 }
91
92#define BENIGN_LANGOPT(Name, Bits, Default, Description)
93#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
94#include "clang/Basic/LangOptions.def"
John McCall260611a2012-06-20 06:18:46 +000095
96 if (PPLangOpts.ObjCRuntime != LangOpts.ObjCRuntime) {
97 Reader.Diag(diag::err_pch_langopt_value_mismatch)
98 << "target Objective-C runtime";
99 return true;
100 }
Douglas Gregor7d5e81b2011-09-13 18:26:39 +0000101
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000102 return false;
103}
104
Douglas Gregor57016dd2012-10-16 23:40:58 +0000105bool PCHValidator::ReadTargetOptions(const ModuleFile &M,
106 const TargetOptions &TargetOpts) {
107 const TargetOptions &ExistingTargetOpts = PP.getTargetInfo().getTargetOpts();
Daniel Dunbardc3c0d22009-11-11 00:52:11 +0000108
Douglas Gregor57016dd2012-10-16 23:40:58 +0000109#define CHECK_TARGET_OPT(Field, Name) \
110 if (TargetOpts.Field != ExistingTargetOpts.Field) { \
111 Reader.Diag(diag::err_pch_targetopt_mismatch) \
112 << Name << TargetOpts.Field << ExistingTargetOpts.Field; \
113 return true; \
114 }
115
116 CHECK_TARGET_OPT(Triple, "target");
117 CHECK_TARGET_OPT(CPU, "target CPU");
118 CHECK_TARGET_OPT(ABI, "target ABI");
119 CHECK_TARGET_OPT(CXXABI, "target C++ ABI");
120 CHECK_TARGET_OPT(LinkerVersion, "target linker version");
121#undef CHECK_TARGET_OPT
122
123 // Compare feature sets.
124 SmallVector<StringRef, 4> ExistingFeatures(
125 ExistingTargetOpts.FeaturesAsWritten.begin(),
126 ExistingTargetOpts.FeaturesAsWritten.end());
127 SmallVector<StringRef, 4> ReadFeatures(TargetOpts.FeaturesAsWritten.begin(),
128 TargetOpts.FeaturesAsWritten.end());
129 std::sort(ExistingFeatures.begin(), ExistingFeatures.end());
130 std::sort(ReadFeatures.begin(), ReadFeatures.end());
131
132 unsigned ExistingIdx = 0, ExistingN = ExistingFeatures.size();
133 unsigned ReadIdx = 0, ReadN = ReadFeatures.size();
134 while (ExistingIdx < ExistingN && ReadIdx < ReadN) {
135 if (ExistingFeatures[ExistingIdx] == ReadFeatures[ReadIdx]) {
136 ++ExistingIdx;
137 ++ReadIdx;
138 continue;
139 }
140
141 if (ReadFeatures[ReadIdx] < ExistingFeatures[ExistingIdx]) {
142 Reader.Diag(diag::err_pch_targetopt_feature_mismatch)
143 << false << ReadFeatures[ReadIdx];
144 return true;
145 }
146
147 Reader.Diag(diag::err_pch_targetopt_feature_mismatch)
148 << true << ExistingFeatures[ExistingIdx];
149 return true;
150 }
151
152 if (ExistingIdx < ExistingN) {
153 Reader.Diag(diag::err_pch_targetopt_feature_mismatch)
154 << true << ExistingFeatures[ExistingIdx];
155 return true;
156 }
157
158 if (ReadIdx < ReadN) {
159 Reader.Diag(diag::err_pch_targetopt_feature_mismatch)
160 << false << ReadFeatures[ReadIdx];
161 return true;
162 }
163
164 return false;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000165}
166
Benjamin Kramer54353f42010-11-25 18:29:30 +0000167namespace {
168 struct EmptyStringRef {
Chris Lattner5f9e2722011-07-23 10:55:15 +0000169 bool operator ()(StringRef r) const { return r.empty(); }
Benjamin Kramer54353f42010-11-25 18:29:30 +0000170 };
171 struct EmptyBlock {
172 bool operator ()(const PCHPredefinesBlock &r) const {return r.Data.empty();}
173 };
174}
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000175
Chris Lattner5f9e2722011-07-23 10:55:15 +0000176static bool EqualConcatenations(SmallVector<StringRef, 2> L,
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000177 PCHPredefinesBlocks R) {
178 // First, sum up the lengths.
179 unsigned LL = 0, RL = 0;
180 for (unsigned I = 0, N = L.size(); I != N; ++I) {
181 LL += L[I].size();
182 }
183 for (unsigned I = 0, N = R.size(); I != N; ++I) {
184 RL += R[I].Data.size();
185 }
186 if (LL != RL)
187 return false;
188 if (LL == 0 && RL == 0)
189 return true;
190
191 // Kick out empty parts, they confuse the algorithm below.
192 L.erase(std::remove_if(L.begin(), L.end(), EmptyStringRef()), L.end());
193 R.erase(std::remove_if(R.begin(), R.end(), EmptyBlock()), R.end());
194
195 // Do it the hard way. At this point, both vectors must be non-empty.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000196 StringRef LR = L[0], RR = R[0].Data;
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000197 unsigned LI = 0, RI = 0, LN = L.size(), RN = R.size();
Daniel Dunbarc76c9e02010-07-16 00:00:11 +0000198 (void) RN;
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000199 for (;;) {
200 // Compare the current pieces.
201 if (LR.size() == RR.size()) {
202 // If they're the same length, it's pretty easy.
203 if (LR != RR)
204 return false;
205 // Both pieces are done, advance.
206 ++LI;
207 ++RI;
208 // If either string is done, they're both done, since they're the same
209 // length.
210 if (LI == LN) {
211 assert(RI == RN && "Strings not the same length after all?");
212 return true;
213 }
214 LR = L[LI];
215 RR = R[RI].Data;
216 } else if (LR.size() < RR.size()) {
217 // Right piece is longer.
218 if (!RR.startswith(LR))
219 return false;
220 ++LI;
221 assert(LI != LN && "Strings not the same length after all?");
222 RR = RR.substr(LR.size());
223 LR = L[LI];
224 } else {
225 // Left piece is longer.
226 if (!LR.startswith(RR))
227 return false;
228 ++RI;
229 assert(RI != RN && "Strings not the same length after all?");
230 LR = LR.substr(RR.size());
231 RR = R[RI].Data;
232 }
233 }
234}
235
Chris Lattner5f9e2722011-07-23 10:55:15 +0000236static std::pair<FileID, StringRef::size_type>
237FindMacro(const PCHPredefinesBlocks &Buffers, StringRef MacroDef) {
238 std::pair<FileID, StringRef::size_type> Res;
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000239 for (unsigned I = 0, N = Buffers.size(); I != N; ++I) {
240 Res.second = Buffers[I].Data.find(MacroDef);
Chris Lattner5f9e2722011-07-23 10:55:15 +0000241 if (Res.second != StringRef::npos) {
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000242 Res.first = Buffers[I].BufferID;
243 break;
244 }
245 }
246 return Res;
247}
248
249bool PCHValidator::ReadPredefinesBuffer(const PCHPredefinesBlocks &Buffers,
Chris Lattner5f9e2722011-07-23 10:55:15 +0000250 StringRef OriginalFileName,
Nick Lewycky277a6e72011-02-23 21:16:44 +0000251 std::string &SuggestedPredefines,
252 FileManager &FileMgr) {
Daniel Dunbarc7162932009-11-11 23:58:53 +0000253 // We are in the context of an implicit include, so the predefines buffer will
254 // have a #include entry for the PCH file itself (as normalized by the
255 // preprocessor initialization). Find it and skip over it in the checking
256 // below.
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +0000257 SmallString<256> PCHInclude;
Daniel Dunbar7b5a1212009-11-11 05:29:04 +0000258 PCHInclude += "#include \"";
Chandler Carruthcb381ea2011-12-09 01:33:57 +0000259 PCHInclude += HeaderSearch::NormalizeDashIncludePath(OriginalFileName,
260 FileMgr);
Daniel Dunbar7b5a1212009-11-11 05:29:04 +0000261 PCHInclude += "\"\n";
Chris Lattner5f9e2722011-07-23 10:55:15 +0000262 std::pair<StringRef,StringRef> Split =
263 StringRef(PP.getPredefines()).split(PCHInclude.str());
264 StringRef Left = Split.first, Right = Split.second;
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +0000265 if (Left == PP.getPredefines()) {
266 Error("Missing PCH include entry!");
267 return true;
268 }
Daniel Dunbar7b5a1212009-11-11 05:29:04 +0000269
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000270 // If the concatenation of all the PCH buffers is equal to the adjusted
271 // command line, we're done.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000272 SmallVector<StringRef, 2> CommandLine;
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000273 CommandLine.push_back(Left);
274 CommandLine.push_back(Right);
275 if (EqualConcatenations(CommandLine, Buffers))
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000276 return false;
277
278 SourceManager &SourceMgr = PP.getSourceManager();
Mike Stump1eb44332009-09-09 15:08:12 +0000279
Daniel Dunbar10014aa2009-11-11 03:45:59 +0000280 // The predefines buffers are different. Determine what the differences are,
281 // and whether they require us to reject the PCH file.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000282 SmallVector<StringRef, 8> PCHLines;
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000283 for (unsigned I = 0, N = Buffers.size(); I != N; ++I)
284 Buffers[I].Data.split(PCHLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
Daniel Dunbare6750492009-11-13 16:46:11 +0000285
Chris Lattner5f9e2722011-07-23 10:55:15 +0000286 SmallVector<StringRef, 8> CmdLineLines;
Daniel Dunbare6750492009-11-13 16:46:11 +0000287 Left.split(CmdLineLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
Argyrios Kyrtzidis297c7062010-09-30 16:53:50 +0000288
289 // Pick out implicit #includes after the PCH and don't consider them for
290 // validation; we will insert them into SuggestedPredefines so that the
291 // preprocessor includes them.
292 std::string IncludesAfterPCH;
Chris Lattner5f9e2722011-07-23 10:55:15 +0000293 SmallVector<StringRef, 8> AfterPCHLines;
Argyrios Kyrtzidis297c7062010-09-30 16:53:50 +0000294 Right.split(AfterPCHLines, "\n", /*MaxSplit=*/-1, /*KeepEmpty=*/false);
295 for (unsigned i = 0, e = AfterPCHLines.size(); i != e; ++i) {
296 if (AfterPCHLines[i].startswith("#include ")) {
297 IncludesAfterPCH += AfterPCHLines[i];
298 IncludesAfterPCH += '\n';
299 } else {
300 CmdLineLines.push_back(AfterPCHLines[i]);
301 }
302 }
303
304 // Make sure we add the includes last into SuggestedPredefines before we
305 // exit this function.
306 struct AddIncludesRAII {
307 std::string &SuggestedPredefines;
308 std::string &IncludesAfterPCH;
309
310 AddIncludesRAII(std::string &SuggestedPredefines,
311 std::string &IncludesAfterPCH)
312 : SuggestedPredefines(SuggestedPredefines),
313 IncludesAfterPCH(IncludesAfterPCH) { }
314 ~AddIncludesRAII() {
315 SuggestedPredefines += IncludesAfterPCH;
316 }
317 } AddIncludes(SuggestedPredefines, IncludesAfterPCH);
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000318
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000319 // Sort both sets of predefined buffer lines, since we allow some extra
320 // definitions and they may appear at any point in the output.
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000321 std::sort(CmdLineLines.begin(), CmdLineLines.end());
322 std::sort(PCHLines.begin(), PCHLines.end());
323
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000324 // Determine which predefines that were used to build the PCH file are missing
325 // from the command line.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000326 std::vector<StringRef> MissingPredefines;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000327 std::set_difference(PCHLines.begin(), PCHLines.end(),
328 CmdLineLines.begin(), CmdLineLines.end(),
329 std::back_inserter(MissingPredefines));
330
331 bool MissingDefines = false;
332 bool ConflictingDefines = false;
333 for (unsigned I = 0, N = MissingPredefines.size(); I != N; ++I) {
Chris Lattner5f9e2722011-07-23 10:55:15 +0000334 StringRef Missing = MissingPredefines[I];
Argyrios Kyrtzidis297c7062010-09-30 16:53:50 +0000335 if (Missing.startswith("#include ")) {
336 // An -include was specified when generating the PCH; it is included in
337 // the PCH, just ignore it.
338 continue;
339 }
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000340 if (!Missing.startswith("#define ")) {
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000341 Reader.Diag(diag::warn_pch_compiler_options_mismatch);
342 return true;
343 }
Mike Stump1eb44332009-09-09 15:08:12 +0000344
Daniel Dunbar10014aa2009-11-11 03:45:59 +0000345 // This is a macro definition. Determine the name of the macro we're
346 // defining.
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000347 std::string::size_type StartOfMacroName = strlen("#define ");
Mike Stump1eb44332009-09-09 15:08:12 +0000348 std::string::size_type EndOfMacroName
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000349 = Missing.find_first_of("( \n\r", StartOfMacroName);
350 assert(EndOfMacroName != std::string::npos &&
351 "Couldn't find the end of the macro name");
Chris Lattner5f9e2722011-07-23 10:55:15 +0000352 StringRef MacroName = Missing.slice(StartOfMacroName, EndOfMacroName);
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000353
Daniel Dunbar10014aa2009-11-11 03:45:59 +0000354 // Determine whether this macro was given a different definition on the
355 // command line.
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000356 std::string MacroDefStart = "#define " + MacroName.str();
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000357 std::string::size_type MacroDefLen = MacroDefStart.size();
Chris Lattner5f9e2722011-07-23 10:55:15 +0000358 SmallVector<StringRef, 8>::iterator ConflictPos
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000359 = std::lower_bound(CmdLineLines.begin(), CmdLineLines.end(),
360 MacroDefStart);
361 for (; ConflictPos != CmdLineLines.end(); ++ConflictPos) {
Daniel Dunbar10014aa2009-11-11 03:45:59 +0000362 if (!ConflictPos->startswith(MacroDefStart)) {
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000363 // Different macro; we're done.
364 ConflictPos = CmdLineLines.end();
Mike Stump1eb44332009-09-09 15:08:12 +0000365 break;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000366 }
Mike Stump1eb44332009-09-09 15:08:12 +0000367
368 assert(ConflictPos->size() > MacroDefLen &&
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000369 "Invalid #define in predefines buffer?");
Mike Stump1eb44332009-09-09 15:08:12 +0000370 if ((*ConflictPos)[MacroDefLen] != ' ' &&
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000371 (*ConflictPos)[MacroDefLen] != '(')
372 continue; // Longer macro name; keep trying.
Mike Stump1eb44332009-09-09 15:08:12 +0000373
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000374 // We found a conflicting macro definition.
375 break;
376 }
Mike Stump1eb44332009-09-09 15:08:12 +0000377
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000378 if (ConflictPos != CmdLineLines.end()) {
379 Reader.Diag(diag::warn_cmdline_conflicting_macro_def)
380 << MacroName;
381
382 // Show the definition of this macro within the PCH file.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000383 std::pair<FileID, StringRef::size_type> MacroLoc =
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000384 FindMacro(Buffers, Missing);
Chris Lattner5f9e2722011-07-23 10:55:15 +0000385 assert(MacroLoc.second!=StringRef::npos && "Unable to find macro!");
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000386 SourceLocation PCHMissingLoc =
387 SourceMgr.getLocForStartOfFile(MacroLoc.first)
Argyrios Kyrtzidisa64ccef2011-09-19 20:40:19 +0000388 .getLocWithOffset(MacroLoc.second);
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000389 Reader.Diag(PCHMissingLoc, diag::note_pch_macro_defined_as) << MacroName;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000390
391 ConflictingDefines = true;
392 continue;
393 }
Mike Stump1eb44332009-09-09 15:08:12 +0000394
Daniel Dunbar10014aa2009-11-11 03:45:59 +0000395 // If the macro doesn't conflict, then we'll just pick up the macro
396 // definition from the PCH file. Warn the user that they made a mistake.
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000397 if (ConflictingDefines)
398 continue; // Don't complain if there are already conflicting defs
Mike Stump1eb44332009-09-09 15:08:12 +0000399
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000400 if (!MissingDefines) {
401 Reader.Diag(diag::warn_cmdline_missing_macro_defs);
402 MissingDefines = true;
403 }
404
405 // Show the definition of this macro within the PCH file.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000406 std::pair<FileID, StringRef::size_type> MacroLoc =
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000407 FindMacro(Buffers, Missing);
Chris Lattner5f9e2722011-07-23 10:55:15 +0000408 assert(MacroLoc.second!=StringRef::npos && "Unable to find macro!");
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000409 SourceLocation PCHMissingLoc =
410 SourceMgr.getLocForStartOfFile(MacroLoc.first)
Argyrios Kyrtzidisa64ccef2011-09-19 20:40:19 +0000411 .getLocWithOffset(MacroLoc.second);
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000412 Reader.Diag(PCHMissingLoc, diag::note_using_macro_def_from_pch);
413 }
Mike Stump1eb44332009-09-09 15:08:12 +0000414
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000415 if (ConflictingDefines)
416 return true;
Mike Stump1eb44332009-09-09 15:08:12 +0000417
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000418 // Determine what predefines were introduced based on command-line
419 // parameters that were not present when building the PCH
420 // file. Extra #defines are okay, so long as the identifiers being
421 // defined were not used within the precompiled header.
Chris Lattner5f9e2722011-07-23 10:55:15 +0000422 std::vector<StringRef> ExtraPredefines;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000423 std::set_difference(CmdLineLines.begin(), CmdLineLines.end(),
424 PCHLines.begin(), PCHLines.end(),
Mike Stump1eb44332009-09-09 15:08:12 +0000425 std::back_inserter(ExtraPredefines));
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000426 for (unsigned I = 0, N = ExtraPredefines.size(); I != N; ++I) {
Chris Lattner5f9e2722011-07-23 10:55:15 +0000427 StringRef &Extra = ExtraPredefines[I];
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000428 if (!Extra.startswith("#define ")) {
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000429 Reader.Diag(diag::warn_pch_compiler_options_mismatch);
430 return true;
431 }
432
433 // This is an extra macro definition. Determine the name of the
434 // macro we're defining.
435 std::string::size_type StartOfMacroName = strlen("#define ");
Mike Stump1eb44332009-09-09 15:08:12 +0000436 std::string::size_type EndOfMacroName
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000437 = Extra.find_first_of("( \n\r", StartOfMacroName);
438 assert(EndOfMacroName != std::string::npos &&
439 "Couldn't find the end of the macro name");
Chris Lattner5f9e2722011-07-23 10:55:15 +0000440 StringRef MacroName = Extra.slice(StartOfMacroName, EndOfMacroName);
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000441
442 // Check whether this name was used somewhere in the PCH file. If
443 // so, defining it as a macro could change behavior, so we reject
444 // the PCH file.
Daniel Dunbar4d5936a2009-11-11 05:26:28 +0000445 if (IdentifierInfo *II = Reader.get(MacroName)) {
Daniel Dunbar4fda42e2009-11-11 00:52:00 +0000446 Reader.Diag(diag::warn_macro_name_used_in_pch) << II;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000447 return true;
448 }
449
450 // Add this definition to the suggested predefines buffer.
451 SuggestedPredefines += Extra;
452 SuggestedPredefines += '\n';
453 }
454
455 // If we get here, it's because the predefines buffer had compatible
456 // contents. Accept the PCH file.
457 return false;
458}
459
Douglas Gregor12fab312010-03-16 16:35:32 +0000460void PCHValidator::ReadHeaderFileInfo(const HeaderFileInfo &HFI,
461 unsigned ID) {
462 PP.getHeaderSearchInfo().setHeaderFileInfoForUID(HFI, ID);
463 ++NumHeaderInfos;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000464}
465
Argyrios Kyrtzidis62288ed2012-10-10 02:12:47 +0000466void PCHValidator::ReadCounter(const ModuleFile &M, unsigned Value) {
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000467 PP.setCounterValue(Value);
468}
469
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +0000470//===----------------------------------------------------------------------===//
Sebastian Redlc43b54c2010-08-18 23:56:43 +0000471// AST reader implementation
Douglas Gregor668c1a42009-04-21 22:25:48 +0000472//===----------------------------------------------------------------------===//
473
Sebastian Redlffaab3e2010-07-30 00:29:29 +0000474void
Sebastian Redl571db7f2010-08-18 23:56:56 +0000475ASTReader::setDeserializationListener(ASTDeserializationListener *Listener) {
Sebastian Redlffaab3e2010-07-30 00:29:29 +0000476 DeserializationListener = Listener;
Sebastian Redlffaab3e2010-07-30 00:29:29 +0000477}
478
Chris Lattner4c6f9522009-04-27 05:14:47 +0000479
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000480
Douglas Gregor98339b92011-08-25 20:47:51 +0000481unsigned ASTSelectorLookupTrait::ComputeHash(Selector Sel) {
482 return serialization::ComputeHash(Sel);
483}
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000484
Mike Stump1eb44332009-09-09 15:08:12 +0000485
Douglas Gregor98339b92011-08-25 20:47:51 +0000486std::pair<unsigned, unsigned>
487ASTSelectorLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
488 using namespace clang::io;
489 unsigned KeyLen = ReadUnalignedLE16(d);
490 unsigned DataLen = ReadUnalignedLE16(d);
491 return std::make_pair(KeyLen, DataLen);
492}
493
494ASTSelectorLookupTrait::internal_key_type
495ASTSelectorLookupTrait::ReadKey(const unsigned char* d, unsigned) {
496 using namespace clang::io;
Douglas Gregor35942772011-09-09 21:34:22 +0000497 SelectorTable &SelTable = Reader.getContext().Selectors;
Douglas Gregor98339b92011-08-25 20:47:51 +0000498 unsigned N = ReadUnalignedLE16(d);
499 IdentifierInfo *FirstII
500 = Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
501 if (N == 0)
502 return SelTable.getNullarySelector(FirstII);
503 else if (N == 1)
504 return SelTable.getUnarySelector(FirstII);
505
506 SmallVector<IdentifierInfo *, 16> Args;
507 Args.push_back(FirstII);
508 for (unsigned I = 1; I != N; ++I)
509 Args.push_back(Reader.getLocalIdentifier(F, ReadUnalignedLE32(d)));
510
511 return SelTable.getSelector(N, Args.data());
512}
513
514ASTSelectorLookupTrait::data_type
515ASTSelectorLookupTrait::ReadData(Selector, const unsigned char* d,
516 unsigned DataLen) {
517 using namespace clang::io;
518
519 data_type Result;
520
521 Result.ID = Reader.getGlobalSelectorID(F, ReadUnalignedLE32(d));
522 unsigned NumInstanceMethods = ReadUnalignedLE16(d);
523 unsigned NumFactoryMethods = ReadUnalignedLE16(d);
524
525 // Load instance methods
Douglas Gregor98339b92011-08-25 20:47:51 +0000526 for (unsigned I = 0; I != NumInstanceMethods; ++I) {
527 if (ObjCMethodDecl *Method
528 = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
529 Result.Instance.push_back(Method);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000530 }
Mike Stump1eb44332009-09-09 15:08:12 +0000531
Douglas Gregor98339b92011-08-25 20:47:51 +0000532 // Load factory methods
Douglas Gregor98339b92011-08-25 20:47:51 +0000533 for (unsigned I = 0; I != NumFactoryMethods; ++I) {
534 if (ObjCMethodDecl *Method
535 = Reader.GetLocalDeclAs<ObjCMethodDecl>(F, ReadUnalignedLE32(d)))
536 Result.Factory.push_back(Method);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000537 }
Mike Stump1eb44332009-09-09 15:08:12 +0000538
Douglas Gregor98339b92011-08-25 20:47:51 +0000539 return Result;
540}
Mike Stump1eb44332009-09-09 15:08:12 +0000541
Douglas Gregor98339b92011-08-25 20:47:51 +0000542unsigned ASTIdentifierLookupTrait::ComputeHash(const internal_key_type& a) {
543 return llvm::HashString(StringRef(a.first, a.second));
544}
Mike Stump1eb44332009-09-09 15:08:12 +0000545
Douglas Gregor98339b92011-08-25 20:47:51 +0000546std::pair<unsigned, unsigned>
547ASTIdentifierLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
548 using namespace clang::io;
549 unsigned DataLen = ReadUnalignedLE16(d);
550 unsigned KeyLen = ReadUnalignedLE16(d);
551 return std::make_pair(KeyLen, DataLen);
552}
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000553
Douglas Gregor98339b92011-08-25 20:47:51 +0000554std::pair<const char*, unsigned>
555ASTIdentifierLookupTrait::ReadKey(const unsigned char* d, unsigned n) {
556 assert(n >= 2 && d[n-1] == '\0');
557 return std::make_pair((const char*) d, n-1);
558}
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000559
Douglas Gregor98339b92011-08-25 20:47:51 +0000560IdentifierInfo *ASTIdentifierLookupTrait::ReadData(const internal_key_type& k,
561 const unsigned char* d,
562 unsigned DataLen) {
563 using namespace clang::io;
564 unsigned RawID = ReadUnalignedLE32(d);
565 bool IsInteresting = RawID & 0x01;
Mike Stump1eb44332009-09-09 15:08:12 +0000566
Douglas Gregor98339b92011-08-25 20:47:51 +0000567 // Wipe out the "is interesting" bit.
568 RawID = RawID >> 1;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +0000569
Douglas Gregor98339b92011-08-25 20:47:51 +0000570 IdentID ID = Reader.getGlobalIdentifierID(F, RawID);
571 if (!IsInteresting) {
572 // For uninteresting identifiers, just build the IdentifierInfo
573 // and associate it with the persistent ID.
Douglas Gregor668c1a42009-04-21 22:25:48 +0000574 IdentifierInfo *II = KnownII;
Douglas Gregor5d5051f2012-01-24 15:24:38 +0000575 if (!II) {
Douglas Gregor6ec60e02011-08-03 21:49:18 +0000576 II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
Douglas Gregor5d5051f2012-01-24 15:24:38 +0000577 KnownII = II;
578 }
Douglas Gregor668c1a42009-04-21 22:25:48 +0000579 Reader.SetIdentifierInfo(ID, II);
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000580 II->setIsFromAST();
Douglas Gregor057df202012-01-18 20:56:22 +0000581 Reader.markIdentifierUpToDate(II);
Douglas Gregor668c1a42009-04-21 22:25:48 +0000582 return II;
583 }
Mike Stump1eb44332009-09-09 15:08:12 +0000584
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +0000585 unsigned ObjCOrBuiltinID = ReadUnalignedLE16(d);
Douglas Gregor98339b92011-08-25 20:47:51 +0000586 unsigned Bits = ReadUnalignedLE16(d);
587 bool CPlusPlusOperatorKeyword = Bits & 0x01;
588 Bits >>= 1;
589 bool HasRevertedTokenIDToIdentifier = Bits & 0x01;
590 Bits >>= 1;
591 bool Poisoned = Bits & 0x01;
592 Bits >>= 1;
593 bool ExtensionToken = Bits & 0x01;
594 Bits >>= 1;
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +0000595 bool hadMacroDefinition = Bits & 0x01;
596 Bits >>= 1;
Douglas Gregor668c1a42009-04-21 22:25:48 +0000597
Douglas Gregor98339b92011-08-25 20:47:51 +0000598 assert(Bits == 0 && "Extra bits in the identifier?");
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +0000599 DataLen -= 8;
Douglas Gregor668c1a42009-04-21 22:25:48 +0000600
Douglas Gregor98339b92011-08-25 20:47:51 +0000601 // Build the IdentifierInfo itself and link the identifier ID with
602 // the new IdentifierInfo.
603 IdentifierInfo *II = KnownII;
Douglas Gregor5d5051f2012-01-24 15:24:38 +0000604 if (!II) {
Douglas Gregor98339b92011-08-25 20:47:51 +0000605 II = &Reader.getIdentifierTable().getOwn(StringRef(k.first, k.second));
Douglas Gregor5d5051f2012-01-24 15:24:38 +0000606 KnownII = II;
607 }
Douglas Gregor057df202012-01-18 20:56:22 +0000608 Reader.markIdentifierUpToDate(II);
Douglas Gregoreee242f2011-10-27 09:33:13 +0000609 II->setIsFromAST();
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000610
Douglas Gregor98339b92011-08-25 20:47:51 +0000611 // Set or check the various bits in the IdentifierInfo structure.
612 // Token IDs are read-only.
613 if (HasRevertedTokenIDToIdentifier)
614 II->RevertTokenIDToIdentifier();
615 II->setObjCOrBuiltinID(ObjCOrBuiltinID);
616 assert(II->isExtensionToken() == ExtensionToken &&
617 "Incorrect extension token flag");
618 (void)ExtensionToken;
619 if (Poisoned)
620 II->setIsPoisoned(true);
621 assert(II->isCPlusPlusOperatorKeyword() == CPlusPlusOperatorKeyword &&
622 "Incorrect C++ operator keyword flag");
623 (void)CPlusPlusOperatorKeyword;
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000624
Douglas Gregor98339b92011-08-25 20:47:51 +0000625 // If this identifier is a macro, deserialize the macro
626 // definition.
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +0000627 if (hadMacroDefinition) {
Douglas Gregor6c6c54a2012-10-11 00:46:49 +0000628 SmallVector<MacroID, 4> MacroIDs;
629 while (uint32_t LocalID = ReadUnalignedLE32(d)) {
630 MacroIDs.push_back(Reader.getGlobalMacroID(F, LocalID));
631 DataLen -= 4;
Douglas Gregor13292642011-12-02 15:45:10 +0000632 }
Douglas Gregor6c6c54a2012-10-11 00:46:49 +0000633 DataLen -= 4;
634 Reader.setIdentifierIsMacro(II, MacroIDs);
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000635 }
636
Douglas Gregoreee242f2011-10-27 09:33:13 +0000637 Reader.SetIdentifierInfo(ID, II);
638
Douglas Gregor98339b92011-08-25 20:47:51 +0000639 // Read all of the declarations visible at global scope with this
640 // name.
Douglas Gregor98339b92011-08-25 20:47:51 +0000641 if (DataLen > 0) {
642 SmallVector<uint32_t, 4> DeclIDs;
643 for (; DataLen > 0; DataLen -= 4)
644 DeclIDs.push_back(Reader.getGlobalDeclID(F, ReadUnalignedLE32(d)));
645 Reader.SetGloballyVisibleDecls(II, DeclIDs);
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000646 }
647
Douglas Gregor98339b92011-08-25 20:47:51 +0000648 return II;
649}
Michael J. Spencer20249a12010-10-21 03:16:25 +0000650
Douglas Gregor98339b92011-08-25 20:47:51 +0000651unsigned
652ASTDeclContextNameLookupTrait::ComputeHash(const DeclNameKey &Key) const {
653 llvm::FoldingSetNodeID ID;
654 ID.AddInteger(Key.Kind);
655
656 switch (Key.Kind) {
657 case DeclarationName::Identifier:
658 case DeclarationName::CXXLiteralOperatorName:
659 ID.AddString(((IdentifierInfo*)Key.Data)->getName());
660 break;
661 case DeclarationName::ObjCZeroArgSelector:
662 case DeclarationName::ObjCOneArgSelector:
663 case DeclarationName::ObjCMultiArgSelector:
664 ID.AddInteger(serialization::ComputeHash(Selector(Key.Data)));
665 break;
666 case DeclarationName::CXXOperatorName:
667 ID.AddInteger((OverloadedOperatorKind)Key.Data);
668 break;
669 case DeclarationName::CXXConstructorName:
670 case DeclarationName::CXXDestructorName:
671 case DeclarationName::CXXConversionFunctionName:
672 case DeclarationName::CXXUsingDirective:
673 break;
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000674 }
675
Douglas Gregor98339b92011-08-25 20:47:51 +0000676 return ID.ComputeHash();
677}
Argyrios Kyrtzidisa60786b2010-08-20 23:35:55 +0000678
Douglas Gregor98339b92011-08-25 20:47:51 +0000679ASTDeclContextNameLookupTrait::internal_key_type
680ASTDeclContextNameLookupTrait::GetInternalKey(
681 const external_key_type& Name) const {
682 DeclNameKey Key;
683 Key.Kind = Name.getNameKind();
684 switch (Name.getNameKind()) {
685 case DeclarationName::Identifier:
686 Key.Data = (uint64_t)Name.getAsIdentifierInfo();
687 break;
688 case DeclarationName::ObjCZeroArgSelector:
689 case DeclarationName::ObjCOneArgSelector:
690 case DeclarationName::ObjCMultiArgSelector:
691 Key.Data = (uint64_t)Name.getObjCSelector().getAsOpaquePtr();
692 break;
693 case DeclarationName::CXXOperatorName:
694 Key.Data = Name.getCXXOverloadedOperator();
695 break;
696 case DeclarationName::CXXLiteralOperatorName:
697 Key.Data = (uint64_t)Name.getCXXLiteralIdentifier();
698 break;
699 case DeclarationName::CXXConstructorName:
700 case DeclarationName::CXXDestructorName:
701 case DeclarationName::CXXConversionFunctionName:
702 case DeclarationName::CXXUsingDirective:
703 Key.Data = 0;
704 break;
Argyrios Kyrtzidisa60786b2010-08-20 23:35:55 +0000705 }
706
Douglas Gregor98339b92011-08-25 20:47:51 +0000707 return Key;
708}
709
Douglas Gregor98339b92011-08-25 20:47:51 +0000710std::pair<unsigned, unsigned>
711ASTDeclContextNameLookupTrait::ReadKeyDataLength(const unsigned char*& d) {
712 using namespace clang::io;
713 unsigned KeyLen = ReadUnalignedLE16(d);
714 unsigned DataLen = ReadUnalignedLE16(d);
715 return std::make_pair(KeyLen, DataLen);
716}
Michael J. Spencer20249a12010-10-21 03:16:25 +0000717
Douglas Gregor98339b92011-08-25 20:47:51 +0000718ASTDeclContextNameLookupTrait::internal_key_type
719ASTDeclContextNameLookupTrait::ReadKey(const unsigned char* d, unsigned) {
720 using namespace clang::io;
721
722 DeclNameKey Key;
723 Key.Kind = (DeclarationName::NameKind)*d++;
724 switch (Key.Kind) {
725 case DeclarationName::Identifier:
726 Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
727 break;
728 case DeclarationName::ObjCZeroArgSelector:
729 case DeclarationName::ObjCOneArgSelector:
730 case DeclarationName::ObjCMultiArgSelector:
731 Key.Data =
732 (uint64_t)Reader.getLocalSelector(F, ReadUnalignedLE32(d))
733 .getAsOpaquePtr();
734 break;
735 case DeclarationName::CXXOperatorName:
736 Key.Data = *d++; // OverloadedOperatorKind
737 break;
738 case DeclarationName::CXXLiteralOperatorName:
739 Key.Data = (uint64_t)Reader.getLocalIdentifier(F, ReadUnalignedLE32(d));
740 break;
741 case DeclarationName::CXXConstructorName:
742 case DeclarationName::CXXDestructorName:
743 case DeclarationName::CXXConversionFunctionName:
744 case DeclarationName::CXXUsingDirective:
745 Key.Data = 0;
746 break;
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000747 }
748
Douglas Gregor98339b92011-08-25 20:47:51 +0000749 return Key;
750}
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000751
Douglas Gregor98339b92011-08-25 20:47:51 +0000752ASTDeclContextNameLookupTrait::data_type
753ASTDeclContextNameLookupTrait::ReadData(internal_key_type,
754 const unsigned char* d,
Nick Lewyckyb346d2f2012-04-16 02:51:46 +0000755 unsigned DataLen) {
Douglas Gregor98339b92011-08-25 20:47:51 +0000756 using namespace clang::io;
757 unsigned NumDecls = ReadUnalignedLE16(d);
Douglas Gregor9b8b20f2012-01-06 16:09:53 +0000758 LE32DeclID *Start = (LE32DeclID *)d;
Douglas Gregor98339b92011-08-25 20:47:51 +0000759 return std::make_pair(Start, Start + NumDecls);
760}
Argyrios Kyrtzidis5d267682010-08-20 16:04:27 +0000761
Douglas Gregor1a4761e2011-11-30 23:21:26 +0000762bool ASTReader::ReadDeclContextStorage(ModuleFile &M,
Douglas Gregor0d95f772011-08-24 19:03:07 +0000763 llvm::BitstreamCursor &Cursor,
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +0000764 const std::pair<uint64_t, uint64_t> &Offsets,
765 DeclContextInfo &Info) {
766 SavedStreamPosition SavedPosition(Cursor);
767 // First the lexical decls.
768 if (Offsets.first != 0) {
769 Cursor.JumpToBit(Offsets.first);
770
771 RecordData Record;
772 const char *Blob;
773 unsigned BlobLen;
774 unsigned Code = Cursor.ReadCode();
775 unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
776 if (RecCode != DECL_CONTEXT_LEXICAL) {
777 Error("Expected lexical block");
778 return true;
779 }
780
Argyrios Kyrtzidiseb5e9982010-10-14 20:14:34 +0000781 Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair*>(Blob);
782 Info.NumLexicalDecls = BlobLen / sizeof(KindDeclIDPair);
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +0000783 }
784
785 // Now the lookup table.
786 if (Offsets.second != 0) {
787 Cursor.JumpToBit(Offsets.second);
788
789 RecordData Record;
790 const char *Blob;
791 unsigned BlobLen;
792 unsigned Code = Cursor.ReadCode();
793 unsigned RecCode = Cursor.ReadRecord(Code, Record, &Blob, &BlobLen);
794 if (RecCode != DECL_CONTEXT_VISIBLE) {
795 Error("Expected visible lookup table block");
796 return true;
797 }
798 Info.NameLookupTableData
799 = ASTDeclContextNameLookupTable::Create(
800 (const unsigned char *)Blob + Record[0],
801 (const unsigned char *)Blob,
Douglas Gregor0d95f772011-08-24 19:03:07 +0000802 ASTDeclContextNameLookupTrait(*this, M));
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +0000803 }
804
805 return false;
806}
807
Chris Lattner5f9e2722011-07-23 10:55:15 +0000808void ASTReader::Error(StringRef Msg) {
Argyrios Kyrtzidis8d8f2c22011-04-25 22:23:56 +0000809 Error(diag::err_fe_pch_malformed, Msg);
810}
811
812void ASTReader::Error(unsigned DiagID,
Chris Lattner5f9e2722011-07-23 10:55:15 +0000813 StringRef Arg1, StringRef Arg2) {
Argyrios Kyrtzidis8d8f2c22011-04-25 22:23:56 +0000814 if (Diags.isDiagnosticInFlight())
815 Diags.SetDelayedDiagnostic(DiagID, Arg1, Arg2);
816 else
817 Diag(DiagID) << Arg1 << Arg2;
Douglas Gregor2cf26342009-04-09 22:27:44 +0000818}
819
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000820/// \brief Tell the AST listener about the predefines buffers in the chain.
Sebastian Redlc43b54c2010-08-18 23:56:43 +0000821bool ASTReader::CheckPredefinesBuffers() {
Douglas Gregor11407b82012-10-18 21:18:25 +0000822 if (Listener) {
823 // We only care about the primary module.
824 ModuleFile &M = ModuleMgr.getPrimaryModule();
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +0000825 return Listener->ReadPredefinesBuffer(PCHPredefinesBuffers,
Douglas Gregor11407b82012-10-18 21:18:25 +0000826 M.ActualOriginalSourceFileName,
Nick Lewycky277a6e72011-02-23 21:16:44 +0000827 SuggestedPredefines,
828 FileMgr);
Douglas Gregor11407b82012-10-18 21:18:25 +0000829 }
Douglas Gregore721f952009-04-28 18:58:38 +0000830 return false;
Douglas Gregore1d918e2009-04-10 23:10:45 +0000831}
832
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000833//===----------------------------------------------------------------------===//
834// Source Manager Deserialization
835//===----------------------------------------------------------------------===//
836
Douglas Gregorbd945002009-04-13 16:31:14 +0000837/// \brief Read the line table in the source manager block.
Sebastian Redlc3632732010-10-05 15:59:54 +0000838/// \returns true if there was an error.
Douglas Gregor1a4761e2011-11-30 23:21:26 +0000839bool ASTReader::ParseLineTable(ModuleFile &F,
Chris Lattner5f9e2722011-07-23 10:55:15 +0000840 SmallVectorImpl<uint64_t> &Record) {
Douglas Gregorbd945002009-04-13 16:31:14 +0000841 unsigned Idx = 0;
842 LineTableInfo &LineTable = SourceMgr.getLineTable();
843
844 // Parse the file names
Douglas Gregorff0a9872009-04-13 17:12:42 +0000845 std::map<int, int> FileIDs;
846 for (int I = 0, N = Record[Idx++]; I != N; ++I) {
Douglas Gregorbd945002009-04-13 16:31:14 +0000847 // Extract the file name
848 unsigned FilenameLen = Record[Idx++];
849 std::string Filename(&Record[Idx], &Record[Idx] + FilenameLen);
850 Idx += FilenameLen;
Douglas Gregorcaed0602012-10-18 21:31:35 +0000851 MaybeAddSystemRootToFilename(F, Filename);
Jay Foad65aa6882011-06-21 15:13:30 +0000852 FileIDs[I] = LineTable.getLineTableFilenameID(Filename);
Douglas Gregorbd945002009-04-13 16:31:14 +0000853 }
854
855 // Parse the line entries
856 std::vector<LineEntry> Entries;
857 while (Idx < Record.size()) {
Argyrios Kyrtzidisf52a5d22010-07-02 11:55:05 +0000858 int FID = Record[Idx++];
Douglas Gregorf62d43d2011-07-19 16:10:42 +0000859 assert(FID >= 0 && "Serialized line entries for non-local file.");
860 // Remap FileID from 1-based old view.
861 FID += F.SLocEntryBaseID - 1;
Douglas Gregorbd945002009-04-13 16:31:14 +0000862
863 // Extract the line entries
864 unsigned NumEntries = Record[Idx++];
Argyrios Kyrtzidisf52a5d22010-07-02 11:55:05 +0000865 assert(NumEntries && "Numentries is 00000");
Douglas Gregorbd945002009-04-13 16:31:14 +0000866 Entries.clear();
867 Entries.reserve(NumEntries);
868 for (unsigned I = 0; I != NumEntries; ++I) {
869 unsigned FileOffset = Record[Idx++];
870 unsigned LineNo = Record[Idx++];
Argyrios Kyrtzidisf52a5d22010-07-02 11:55:05 +0000871 int FilenameID = FileIDs[Record[Idx++]];
Mike Stump1eb44332009-09-09 15:08:12 +0000872 SrcMgr::CharacteristicKind FileKind
Douglas Gregorbd945002009-04-13 16:31:14 +0000873 = (SrcMgr::CharacteristicKind)Record[Idx++];
874 unsigned IncludeOffset = Record[Idx++];
875 Entries.push_back(LineEntry::get(FileOffset, LineNo, FilenameID,
876 FileKind, IncludeOffset));
877 }
Douglas Gregor47d9de62012-06-08 16:40:28 +0000878 LineTable.AddEntry(FileID::get(FID), Entries);
Douglas Gregorbd945002009-04-13 16:31:14 +0000879 }
880
881 return false;
882}
883
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000884namespace {
885
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000886class ASTStatData {
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000887public:
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000888 const ino_t ino;
889 const dev_t dev;
890 const mode_t mode;
891 const time_t mtime;
892 const off_t size;
Mike Stump1eb44332009-09-09 15:08:12 +0000893
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000894 ASTStatData(ino_t i, dev_t d, mode_t mo, time_t m, off_t s)
Chris Lattner74e976b2010-11-23 19:28:12 +0000895 : ino(i), dev(d), mode(mo), mtime(m), size(s) {}
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000896};
897
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000898class ASTStatLookupTrait {
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000899 public:
900 typedef const char *external_key_type;
901 typedef const char *internal_key_type;
902
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000903 typedef ASTStatData data_type;
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000904
905 static unsigned ComputeHash(const char *path) {
Daniel Dunbar2596e422009-10-17 23:52:28 +0000906 return llvm::HashString(path);
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000907 }
908
909 static internal_key_type GetInternalKey(const char *path) { return path; }
910
911 static bool EqualKey(internal_key_type a, internal_key_type b) {
912 return strcmp(a, b) == 0;
913 }
914
915 static std::pair<unsigned, unsigned>
916 ReadKeyDataLength(const unsigned char*& d) {
917 unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d);
918 unsigned DataLen = (unsigned) *d++;
919 return std::make_pair(KeyLen + 1, DataLen);
920 }
921
922 static internal_key_type ReadKey(const unsigned char *d, unsigned) {
923 return (const char *)d;
924 }
925
926 static data_type ReadData(const internal_key_type, const unsigned char *d,
927 unsigned /*DataLen*/) {
928 using namespace clang::io;
929
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000930 ino_t ino = (ino_t) ReadUnalignedLE32(d);
931 dev_t dev = (dev_t) ReadUnalignedLE32(d);
932 mode_t mode = (mode_t) ReadUnalignedLE16(d);
Mike Stump1eb44332009-09-09 15:08:12 +0000933 time_t mtime = (time_t) ReadUnalignedLE64(d);
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000934 off_t size = (off_t) ReadUnalignedLE64(d);
935 return data_type(ino, dev, mode, mtime, size);
936 }
937};
938
939/// \brief stat() cache for precompiled headers.
940///
941/// This cache is very similar to the stat cache used by pretokenized
942/// headers.
Chris Lattner10e286a2010-11-23 19:19:34 +0000943class ASTStatCache : public FileSystemStatCache {
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000944 typedef OnDiskChainedHashTable<ASTStatLookupTrait> CacheTy;
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000945 CacheTy *Cache;
946
947 unsigned &NumStatHits, &NumStatMisses;
Mike Stump1eb44332009-09-09 15:08:12 +0000948public:
Chris Lattner74e976b2010-11-23 19:28:12 +0000949 ASTStatCache(const unsigned char *Buckets, const unsigned char *Base,
950 unsigned &NumStatHits, unsigned &NumStatMisses)
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000951 : Cache(0), NumStatHits(NumStatHits), NumStatMisses(NumStatMisses) {
952 Cache = CacheTy::Create(Buckets, Base);
953 }
954
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000955 ~ASTStatCache() { delete Cache; }
Mike Stump1eb44332009-09-09 15:08:12 +0000956
Chris Lattner898a0612010-11-23 21:17:56 +0000957 LookupResult getStat(const char *Path, struct stat &StatBuf,
958 int *FileDescriptor) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000959 // Do the lookup for the file's data in the AST file.
Chris Lattner10e286a2010-11-23 19:19:34 +0000960 CacheTy::iterator I = Cache->find(Path);
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000961
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000962 // If we don't get a hit in the AST file just forward to 'stat'.
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000963 if (I == Cache->end()) {
964 ++NumStatMisses;
Chris Lattner898a0612010-11-23 21:17:56 +0000965 return statChained(Path, StatBuf, FileDescriptor);
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000966 }
Mike Stump1eb44332009-09-09 15:08:12 +0000967
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000968 ++NumStatHits;
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000969 ASTStatData Data = *I;
Mike Stump1eb44332009-09-09 15:08:12 +0000970
Chris Lattner10e286a2010-11-23 19:19:34 +0000971 StatBuf.st_ino = Data.ino;
972 StatBuf.st_dev = Data.dev;
973 StatBuf.st_mtime = Data.mtime;
974 StatBuf.st_mode = Data.mode;
975 StatBuf.st_size = Data.size;
Chris Lattnerd6f61112010-11-23 20:05:15 +0000976 return CacheExists;
Douglas Gregor4fed3f42009-04-27 18:38:38 +0000977 }
978};
979} // end anonymous namespace
980
981
Sebastian Redl93fb9ed2010-07-19 20:52:06 +0000982/// \brief Read a source manager block
Douglas Gregor1a4761e2011-11-30 23:21:26 +0000983ASTReader::ASTReadResult ASTReader::ReadSourceManagerBlock(ModuleFile &F) {
Douglas Gregor14f79002009-04-10 03:52:48 +0000984 using namespace SrcMgr;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +0000985
Sebastian Redl93fb9ed2010-07-19 20:52:06 +0000986 llvm::BitstreamCursor &SLocEntryCursor = F.SLocEntryCursor;
Sebastian Redl9137a522010-07-16 17:50:48 +0000987
Douglas Gregor7f94b0b2009-04-27 06:38:32 +0000988 // Set the source-location entry cursor to the current position in
989 // the stream. This cursor will be used to read the contents of the
990 // source manager block initially, and then lazily read
991 // source-location entries as needed.
Sebastian Redl93fb9ed2010-07-19 20:52:06 +0000992 SLocEntryCursor = F.Stream;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +0000993
994 // The stream itself is going to skip over the source manager block.
Sebastian Redl93fb9ed2010-07-19 20:52:06 +0000995 if (F.Stream.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +0000996 Error("malformed block record in AST file");
Douglas Gregor7f94b0b2009-04-27 06:38:32 +0000997 return Failure;
998 }
999
1000 // Enter the source manager block.
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001001 if (SLocEntryCursor.EnterSubBlock(SOURCE_MANAGER_BLOCK_ID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001002 Error("malformed source manager block record in AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00001003 return Failure;
1004 }
Douglas Gregor14f79002009-04-10 03:52:48 +00001005
Douglas Gregor14f79002009-04-10 03:52:48 +00001006 RecordData Record;
1007 while (true) {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001008 unsigned Code = SLocEntryCursor.ReadCode();
Douglas Gregor14f79002009-04-10 03:52:48 +00001009 if (Code == llvm::bitc::END_BLOCK) {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001010 if (SLocEntryCursor.ReadBlockEnd()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001011 Error("error at end of Source Manager block in AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00001012 return Failure;
1013 }
Douglas Gregore1d918e2009-04-10 23:10:45 +00001014 return Success;
Douglas Gregor14f79002009-04-10 03:52:48 +00001015 }
Mike Stump1eb44332009-09-09 15:08:12 +00001016
Douglas Gregor14f79002009-04-10 03:52:48 +00001017 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
1018 // No known subblocks, always skip them.
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001019 SLocEntryCursor.ReadSubBlockID();
1020 if (SLocEntryCursor.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001021 Error("malformed block record in AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00001022 return Failure;
1023 }
Douglas Gregor14f79002009-04-10 03:52:48 +00001024 continue;
1025 }
Mike Stump1eb44332009-09-09 15:08:12 +00001026
Douglas Gregor14f79002009-04-10 03:52:48 +00001027 if (Code == llvm::bitc::DEFINE_ABBREV) {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001028 SLocEntryCursor.ReadAbbrevRecord();
Douglas Gregor14f79002009-04-10 03:52:48 +00001029 continue;
1030 }
Mike Stump1eb44332009-09-09 15:08:12 +00001031
Douglas Gregor14f79002009-04-10 03:52:48 +00001032 // Read a record.
1033 const char *BlobStart;
1034 unsigned BlobLen;
1035 Record.clear();
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001036 switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
Douglas Gregor14f79002009-04-10 03:52:48 +00001037 default: // Default behavior: ignore.
1038 break;
1039
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001040 case SM_SLOC_FILE_ENTRY:
1041 case SM_SLOC_BUFFER_ENTRY:
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001042 case SM_SLOC_EXPANSION_ENTRY:
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001043 // Once we hit one of the source location entries, we're done.
1044 return Success;
Douglas Gregor14f79002009-04-10 03:52:48 +00001045 }
1046 }
1047}
1048
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001049/// \brief If a header file is not found at the path that we expect it to be
1050/// and the PCH file was moved from its original location, try to resolve the
1051/// file by assuming that header+PCH were moved together and the header is in
1052/// the same place relative to the PCH.
1053static std::string
1054resolveFileRelativeToOriginalDir(const std::string &Filename,
1055 const std::string &OriginalDir,
1056 const std::string &CurrDir) {
1057 assert(OriginalDir != CurrDir &&
1058 "No point trying to resolve the file if the PCH dir didn't change");
1059 using namespace llvm::sys;
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001060 SmallString<128> filePath(Filename);
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001061 fs::make_absolute(filePath);
1062 assert(path::is_absolute(OriginalDir));
Dylan Noblesmithf7ccbad2012-02-05 02:13:05 +00001063 SmallString<128> currPCHPath(CurrDir);
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001064
1065 path::const_iterator fileDirI = path::begin(path::parent_path(filePath)),
1066 fileDirE = path::end(path::parent_path(filePath));
1067 path::const_iterator origDirI = path::begin(OriginalDir),
1068 origDirE = path::end(OriginalDir);
1069 // Skip the common path components from filePath and OriginalDir.
1070 while (fileDirI != fileDirE && origDirI != origDirE &&
1071 *fileDirI == *origDirI) {
1072 ++fileDirI;
1073 ++origDirI;
1074 }
1075 for (; origDirI != origDirE; ++origDirI)
1076 path::append(currPCHPath, "..");
1077 path::append(currPCHPath, fileDirI, fileDirE);
1078 path::append(currPCHPath, path::filename(Filename));
1079 return currPCHPath.str();
1080}
1081
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001082/// \brief Read in the source location entry with the given ID.
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001083ASTReader::ASTReadResult ASTReader::ReadSLocEntryRecord(int ID) {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001084 if (ID == 0)
1085 return Success;
1086
Douglas Gregor0cdd7982011-07-21 18:46:38 +00001087 if (unsigned(-ID) - 2 >= getTotalNumSLocs() || ID > 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001088 Error("source location entry ID out-of-range for AST file");
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001089 return Failure;
1090 }
1091
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001092 ModuleFile *F = GlobalSLocEntryMap.find(-ID)->second;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001093 F->SLocEntryCursor.JumpToBit(F->SLocEntryOffsets[ID - F->SLocEntryBaseID]);
Sebastian Redlc3632732010-10-05 15:59:54 +00001094 llvm::BitstreamCursor &SLocEntryCursor = F->SLocEntryCursor;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001095 unsigned BaseOffset = F->SLocEntryBaseOffset;
Sebastian Redl9137a522010-07-16 17:50:48 +00001096
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001097 ++NumSLocEntriesRead;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001098 unsigned Code = SLocEntryCursor.ReadCode();
1099 if (Code == llvm::bitc::END_BLOCK ||
1100 Code == llvm::bitc::ENTER_SUBBLOCK ||
1101 Code == llvm::bitc::DEFINE_ABBREV) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001102 Error("incorrectly-formatted source location entry in AST file");
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001103 return Failure;
1104 }
1105
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001106 RecordData Record;
1107 const char *BlobStart;
1108 unsigned BlobLen;
1109 switch (SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
1110 default:
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001111 Error("incorrectly-formatted source location entry in AST file");
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001112 return Failure;
1113
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001114 case SM_SLOC_FILE_ENTRY: {
Douglas Gregora081da52011-11-16 20:05:18 +00001115 if (Record.size() < 7) {
1116 Error("source location entry is incorrect");
1117 return Failure;
1118 }
1119
Argyrios Kyrtzidisa4c29b62012-02-20 23:58:07 +00001120 // We will detect whether a file changed and return 'Failure' for it, but
1121 // we will also try to fail gracefully by setting up the SLocEntry.
1122 ASTReader::ASTReadResult Result = Success;
1123
Douglas Gregora081da52011-11-16 20:05:18 +00001124 bool OverriddenBuffer = Record[6];
1125
1126 std::string OrigFilename(BlobStart, BlobStart + BlobLen);
1127 std::string Filename = OrigFilename;
Douglas Gregorcaed0602012-10-18 21:31:35 +00001128 MaybeAddSystemRootToFilename(*F, Filename);
Douglas Gregora4581a12011-11-17 19:08:51 +00001129 const FileEntry *File =
1130 OverriddenBuffer? FileMgr.getVirtualFile(Filename, (off_t)Record[4],
1131 (time_t)Record[5])
1132 : FileMgr.getFile(Filename, /*OpenFile=*/false);
Douglas Gregor69e16082012-10-18 21:47:16 +00001133 if (File == 0 && !F->OriginalDir.empty() && !CurrentDir.empty() &&
1134 F->OriginalDir != CurrentDir) {
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001135 std::string resolved = resolveFileRelativeToOriginalDir(Filename,
Douglas Gregor69e16082012-10-18 21:47:16 +00001136 F->OriginalDir,
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00001137 CurrentDir);
1138 if (!resolved.empty())
1139 File = FileMgr.getFile(resolved);
1140 }
Axel Naumann04331162011-01-27 10:55:51 +00001141 if (File == 0)
1142 File = FileMgr.getVirtualFile(Filename, (off_t)Record[4],
1143 (time_t)Record[5]);
Chris Lattnerd3555ae2009-06-15 04:35:16 +00001144 if (File == 0) {
1145 std::string ErrorStr = "could not find file '";
Douglas Gregore650c8c2009-07-07 00:12:59 +00001146 ErrorStr += Filename;
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001147 ErrorStr += "' referenced by AST file";
Chris Lattnerd3555ae2009-06-15 04:35:16 +00001148 Error(ErrorStr.c_str());
1149 return Failure;
1150 }
Mike Stump1eb44332009-09-09 15:08:12 +00001151
Argyrios Kyrtzidis2a857182012-10-10 02:12:39 +00001152 if (!DisableValidation && !OverriddenBuffer &&
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001153 ((off_t)Record[4] != File->getSize()
Douglas Gregor9f692a02010-04-09 15:54:22 +00001154#if !defined(LLVM_ON_WIN32)
1155 // In our regression testing, the Windows file system seems to
1156 // have inconsistent modification times that sometimes
1157 // erroneously trigger this error-handling path.
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001158 || (time_t)Record[5] != File->getModificationTime()
Douglas Gregor9f692a02010-04-09 15:54:22 +00001159#endif
Douglas Gregorfae3b2f2010-07-27 00:27:13 +00001160 )) {
Argyrios Kyrtzidis8d8f2c22011-04-25 22:23:56 +00001161 Error(diag::err_fe_pch_file_modified, Filename);
Argyrios Kyrtzidisa4c29b62012-02-20 23:58:07 +00001162 Result = Failure;
Douglas Gregor2d52be52010-03-21 22:49:54 +00001163 }
1164
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001165 SourceLocation IncludeLoc = ReadSourceLocation(*F, Record[1]);
Douglas Gregor72a9ae12011-07-22 16:00:58 +00001166 if (IncludeLoc.isInvalid() && F->Kind != MK_MainFile) {
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001167 // This is the module's main file.
1168 IncludeLoc = getImportLocation(F);
1169 }
Argyrios Kyrtzidisff398962012-07-11 20:59:04 +00001170 SrcMgr::CharacteristicKind
1171 FileCharacter = (SrcMgr::CharacteristicKind)Record[2];
1172 FileID FID = SourceMgr.createFileID(File, IncludeLoc, FileCharacter,
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001173 ID, BaseOffset + Record[0]);
Argyrios Kyrtzidisd9d2b672011-08-21 23:33:04 +00001174 SrcMgr::FileInfo &FileInfo =
1175 const_cast<SrcMgr::FileInfo&>(SourceMgr.getSLocEntry(FID).getFile());
Douglas Gregora081da52011-11-16 20:05:18 +00001176 FileInfo.NumCreatedFIDs = Record[7];
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001177 if (Record[3])
Argyrios Kyrtzidisd9d2b672011-08-21 23:33:04 +00001178 FileInfo.setHasLineDirectives();
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00001179
Douglas Gregora081da52011-11-16 20:05:18 +00001180 const DeclID *FirstDecl = F->FileSortedDecls + Record[8];
1181 unsigned NumFileDecls = Record[9];
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00001182 if (NumFileDecls) {
1183 assert(F->FileSortedDecls && "FILE_SORTED_DECLS not encountered yet ?");
Argyrios Kyrtzidis9d128d02011-10-31 07:20:08 +00001184 FileDeclIDs[FID] = FileDeclsInfo(F, llvm::makeArrayRef(FirstDecl,
1185 NumFileDecls));
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00001186 }
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001187
Douglas Gregor35f9ae62011-11-17 01:44:33 +00001188 const SrcMgr::ContentCache *ContentCache
Argyrios Kyrtzidisff398962012-07-11 20:59:04 +00001189 = SourceMgr.getOrCreateContentCache(File,
1190 /*isSystemFile=*/FileCharacter != SrcMgr::C_User);
Douglas Gregor35f9ae62011-11-17 01:44:33 +00001191 if (OverriddenBuffer && !ContentCache->BufferOverridden &&
1192 ContentCache->ContentsEntry == ContentCache->OrigEntry) {
Douglas Gregora081da52011-11-16 20:05:18 +00001193 unsigned Code = SLocEntryCursor.ReadCode();
1194 Record.clear();
1195 unsigned RecCode
1196 = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
1197
1198 if (RecCode != SM_SLOC_BUFFER_BLOB) {
1199 Error("AST record has invalid code");
1200 return Failure;
1201 }
1202
1203 llvm::MemoryBuffer *Buffer
1204 = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
1205 Filename);
1206 SourceMgr.overrideFileContents(File, Buffer);
1207 }
Argyrios Kyrtzidisa4c29b62012-02-20 23:58:07 +00001208
1209 if (Result == Failure)
1210 return Failure;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001211 break;
1212 }
1213
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001214 case SM_SLOC_BUFFER_ENTRY: {
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001215 const char *Name = BlobStart;
1216 unsigned Offset = Record[0];
1217 unsigned Code = SLocEntryCursor.ReadCode();
1218 Record.clear();
Mike Stump1eb44332009-09-09 15:08:12 +00001219 unsigned RecCode
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001220 = SLocEntryCursor.ReadRecord(Code, Record, &BlobStart, &BlobLen);
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00001221
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001222 if (RecCode != SM_SLOC_BUFFER_BLOB) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001223 Error("AST record has invalid code");
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00001224 return Failure;
1225 }
1226
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001227 llvm::MemoryBuffer *Buffer
Douglas Gregora081da52011-11-16 20:05:18 +00001228 = llvm::MemoryBuffer::getMemBuffer(StringRef(BlobStart, BlobLen - 1),
1229 Name);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001230 FileID BufferID = SourceMgr.createFileIDForMemBuffer(Buffer, ID,
1231 BaseOffset + Offset);
Mike Stump1eb44332009-09-09 15:08:12 +00001232
Douglas Gregor6236a292011-12-02 21:56:05 +00001233 if (strcmp(Name, "<built-in>") == 0 && F->Kind == MK_PCH) {
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +00001234 PCHPredefinesBlock Block = {
1235 BufferID,
Chris Lattner5f9e2722011-07-23 10:55:15 +00001236 StringRef(BlobStart, BlobLen - 1)
Sebastian Redl7e9ad8b2010-07-14 17:49:11 +00001237 };
1238 PCHPredefinesBuffers.push_back(Block);
Douglas Gregor92b059e2009-04-28 20:33:11 +00001239 }
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001240
1241 break;
1242 }
1243
Chandler Carruthf70d12d2011-07-15 07:25:21 +00001244 case SM_SLOC_EXPANSION_ENTRY: {
Sebastian Redlc3632732010-10-05 15:59:54 +00001245 SourceLocation SpellingLoc = ReadSourceLocation(*F, Record[1]);
Chandler Carruthbf340e42011-07-26 03:03:05 +00001246 SourceMgr.createExpansionLoc(SpellingLoc,
Sebastian Redlc3632732010-10-05 15:59:54 +00001247 ReadSourceLocation(*F, Record[2]),
1248 ReadSourceLocation(*F, Record[3]),
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001249 Record[4],
1250 ID,
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001251 BaseOffset + Record[0]);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001252 break;
Mike Stump1eb44332009-09-09 15:08:12 +00001253 }
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00001254 }
1255
1256 return Success;
1257}
1258
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001259/// \brief Find the location where the module F is imported.
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001260SourceLocation ASTReader::getImportLocation(ModuleFile *F) {
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001261 if (F->ImportLoc.isValid())
1262 return F->ImportLoc;
Jonathan D. Turner2e091632011-07-29 18:09:09 +00001263
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001264 // Otherwise we have a PCH. It's considered to be "imported" at the first
1265 // location of its includer.
Jonathan D. Turner2e091632011-07-29 18:09:09 +00001266 if (F->ImportedBy.empty() || !F->ImportedBy[0]) {
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001267 // Main file is the importer. We assume that it is the first entry in the
1268 // entry table. We can't ask the manager, because at the time of PCH loading
1269 // the main file entry doesn't exist yet.
1270 // The very first entry is the invalid instantiation loc, which takes up
1271 // offsets 0 and 1.
1272 return SourceLocation::getFromRawEncoding(2U);
1273 }
Jonathan D. Turner2e091632011-07-29 18:09:09 +00001274 //return F->Loaders[0]->FirstLoc;
1275 return F->ImportedBy[0]->FirstLoc;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00001276}
1277
Chris Lattner6367f6d2009-04-27 01:05:14 +00001278/// ReadBlockAbbrevs - Enter a subblock of the specified BlockID with the
1279/// specified cursor. Read the abbreviations that are at the top of the block
1280/// and then leave the cursor pointing into the block.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00001281bool ASTReader::ReadBlockAbbrevs(llvm::BitstreamCursor &Cursor,
Chris Lattner6367f6d2009-04-27 01:05:14 +00001282 unsigned BlockID) {
1283 if (Cursor.EnterSubBlock(BlockID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001284 Error("malformed block record in AST file");
Chris Lattner6367f6d2009-04-27 01:05:14 +00001285 return Failure;
1286 }
Mike Stump1eb44332009-09-09 15:08:12 +00001287
Chris Lattner6367f6d2009-04-27 01:05:14 +00001288 while (true) {
Douglas Gregorecdcb882010-10-20 22:00:55 +00001289 uint64_t Offset = Cursor.GetCurrentBitNo();
Chris Lattner6367f6d2009-04-27 01:05:14 +00001290 unsigned Code = Cursor.ReadCode();
Michael J. Spencer20249a12010-10-21 03:16:25 +00001291
Chris Lattner6367f6d2009-04-27 01:05:14 +00001292 // We expect all abbrevs to be at the start of the block.
Douglas Gregorecdcb882010-10-20 22:00:55 +00001293 if (Code != llvm::bitc::DEFINE_ABBREV) {
1294 Cursor.JumpToBit(Offset);
Chris Lattner6367f6d2009-04-27 01:05:14 +00001295 return false;
Douglas Gregorecdcb882010-10-20 22:00:55 +00001296 }
Chris Lattner6367f6d2009-04-27 01:05:14 +00001297 Cursor.ReadAbbrevRecord();
1298 }
1299}
1300
Douglas Gregor3ab50fe2012-10-11 17:41:54 +00001301void ASTReader::ReadMacroRecord(ModuleFile &F, uint64_t Offset,
1302 MacroInfo *Hint) {
Douglas Gregorecdcb882010-10-20 22:00:55 +00001303 llvm::BitstreamCursor &Stream = F.MacroCursor;
Mike Stump1eb44332009-09-09 15:08:12 +00001304
Douglas Gregor37e26842009-04-21 23:56:24 +00001305 // Keep track of where we are in the stream, then jump back there
1306 // after reading this macro.
1307 SavedStreamPosition SavedPosition(Stream);
1308
1309 Stream.JumpToBit(Offset);
1310 RecordData Record;
Chris Lattner5f9e2722011-07-23 10:55:15 +00001311 SmallVector<IdentifierInfo*, 16> MacroArgs;
Douglas Gregor37e26842009-04-21 23:56:24 +00001312 MacroInfo *Macro = 0;
Mike Stump1eb44332009-09-09 15:08:12 +00001313
Douglas Gregore8219a62012-10-11 21:07:39 +00001314 // RAII object to add the loaded macro information once we're done
1315 // adding tokens.
1316 struct AddLoadedMacroInfoRAII {
1317 Preprocessor &PP;
1318 MacroInfo *Hint;
1319 MacroInfo *MI;
1320 IdentifierInfo *II;
1321
1322 AddLoadedMacroInfoRAII(Preprocessor &PP, MacroInfo *Hint)
1323 : PP(PP), Hint(Hint), MI(), II() { }
1324 ~AddLoadedMacroInfoRAII( ) {
1325 if (MI) {
1326 // Finally, install the macro.
1327 PP.addLoadedMacroInfo(II, MI, Hint);
1328 }
1329 }
1330 } AddLoadedMacroInfo(PP, Hint);
1331
Douglas Gregor37e26842009-04-21 23:56:24 +00001332 while (true) {
1333 unsigned Code = Stream.ReadCode();
1334 switch (Code) {
1335 case llvm::bitc::END_BLOCK:
Douglas Gregor3b2257c2011-08-04 18:09:14 +00001336 return;
Douglas Gregor37e26842009-04-21 23:56:24 +00001337
1338 case llvm::bitc::ENTER_SUBBLOCK:
1339 // No known subblocks, always skip them.
1340 Stream.ReadSubBlockID();
1341 if (Stream.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001342 Error("malformed block record in AST file");
Douglas Gregor3b2257c2011-08-04 18:09:14 +00001343 return;
Douglas Gregor37e26842009-04-21 23:56:24 +00001344 }
1345 continue;
Mike Stump1eb44332009-09-09 15:08:12 +00001346
Douglas Gregor37e26842009-04-21 23:56:24 +00001347 case llvm::bitc::DEFINE_ABBREV:
1348 Stream.ReadAbbrevRecord();
1349 continue;
1350 default: break;
1351 }
1352
1353 // Read a record.
Douglas Gregorecdcb882010-10-20 22:00:55 +00001354 const char *BlobStart = 0;
1355 unsigned BlobLen = 0;
Douglas Gregor37e26842009-04-21 23:56:24 +00001356 Record.clear();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001357 PreprocessorRecordTypes RecType =
Michael J. Spencer20249a12010-10-21 03:16:25 +00001358 (PreprocessorRecordTypes)Stream.ReadRecord(Code, Record, BlobStart,
Douglas Gregorecdcb882010-10-20 22:00:55 +00001359 BlobLen);
Douglas Gregor37e26842009-04-21 23:56:24 +00001360 switch (RecType) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001361 case PP_MACRO_OBJECT_LIKE:
1362 case PP_MACRO_FUNCTION_LIKE: {
Douglas Gregor37e26842009-04-21 23:56:24 +00001363 // If we already have a macro, that means that we've hit the end
1364 // of the definition of the macro we were looking for. We're
1365 // done.
1366 if (Macro)
Douglas Gregor3b2257c2011-08-04 18:09:14 +00001367 return;
Douglas Gregor37e26842009-04-21 23:56:24 +00001368
Douglas Gregor95eab172011-07-28 20:55:49 +00001369 IdentifierInfo *II = getLocalIdentifier(F, Record[0]);
Douglas Gregor37e26842009-04-21 23:56:24 +00001370 if (II == 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001371 Error("macro must have a name in AST file");
Douglas Gregor3b2257c2011-08-04 18:09:14 +00001372 return;
Douglas Gregor37e26842009-04-21 23:56:24 +00001373 }
Mike Stump1eb44332009-09-09 15:08:12 +00001374
Douglas Gregora8235d62012-10-09 23:05:51 +00001375 unsigned GlobalID = getGlobalMacroID(F, Record[1]);
1376
1377 // If this macro has already been loaded, don't do so again.
1378 if (MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS])
1379 return;
1380
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001381 SubmoduleID GlobalSubmoduleID = getGlobalSubmoduleID(F, Record[2]);
1382 unsigned NextIndex = 3;
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +00001383 SourceLocation Loc = ReadSourceLocation(F, Record, NextIndex);
Douglas Gregor712f2fc2011-09-09 22:02:16 +00001384 MacroInfo *MI = PP.AllocateMacroInfo(Loc);
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +00001385
Douglas Gregora8235d62012-10-09 23:05:51 +00001386 // Record this macro.
1387 MacrosLoaded[GlobalID - NUM_PREDEF_MACRO_IDS] = MI;
1388
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +00001389 SourceLocation UndefLoc = ReadSourceLocation(F, Record, NextIndex);
1390 if (UndefLoc.isValid())
1391 MI->setUndefLoc(UndefLoc);
1392
1393 MI->setIsUsed(Record[NextIndex++]);
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001394 MI->setIsFromAST();
Mike Stump1eb44332009-09-09 15:08:12 +00001395
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +00001396 bool IsPublic = Record[NextIndex++];
Douglas Gregoraa93a872011-10-17 15:32:29 +00001397 MI->setVisibility(IsPublic, ReadSourceLocation(F, Record, NextIndex));
Alexander Kornienko4d7e0ce2012-09-25 17:18:14 +00001398
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001399 if (RecType == PP_MACRO_FUNCTION_LIKE) {
Douglas Gregor37e26842009-04-21 23:56:24 +00001400 // Decode function-like macro info.
Douglas Gregor7143aab2011-09-01 17:04:32 +00001401 bool isC99VarArgs = Record[NextIndex++];
1402 bool isGNUVarArgs = Record[NextIndex++];
Douglas Gregor37e26842009-04-21 23:56:24 +00001403 MacroArgs.clear();
Douglas Gregor7143aab2011-09-01 17:04:32 +00001404 unsigned NumArgs = Record[NextIndex++];
Douglas Gregor37e26842009-04-21 23:56:24 +00001405 for (unsigned i = 0; i != NumArgs; ++i)
Douglas Gregor7143aab2011-09-01 17:04:32 +00001406 MacroArgs.push_back(getLocalIdentifier(F, Record[NextIndex++]));
Douglas Gregor37e26842009-04-21 23:56:24 +00001407
1408 // Install function-like macro info.
1409 MI->setIsFunctionLike();
1410 if (isC99VarArgs) MI->setIsC99Varargs();
1411 if (isGNUVarArgs) MI->setIsGNUVarargs();
Douglas Gregor75fdb232009-05-22 22:45:36 +00001412 MI->setArgumentList(MacroArgs.data(), MacroArgs.size(),
Douglas Gregor712f2fc2011-09-09 22:02:16 +00001413 PP.getPreprocessorAllocator());
Douglas Gregor37e26842009-04-21 23:56:24 +00001414 }
1415
Douglas Gregora8235d62012-10-09 23:05:51 +00001416 if (DeserializationListener)
1417 DeserializationListener->MacroRead(GlobalID, MI);
1418
1419 // If an update record marked this as undefined, do so now.
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001420 // FIXME: Only if the submodule this update came from is visible?
Douglas Gregora8235d62012-10-09 23:05:51 +00001421 MacroUpdatesMap::iterator Update = MacroUpdates.find(GlobalID);
1422 if (Update != MacroUpdates.end()) {
1423 if (MI->getUndefLoc().isInvalid()) {
Douglas Gregor54c8a402012-10-12 00:16:50 +00001424 for (unsigned I = 0, N = Update->second.size(); I != N; ++I) {
1425 bool Hidden = false;
1426 if (unsigned SubmoduleID = Update->second[I].first) {
1427 if (Module *Owner = getSubmodule(SubmoduleID)) {
1428 if (Owner->NameVisibility == Module::Hidden) {
1429 // Note that this #undef is hidden.
1430 Hidden = true;
1431
1432 // Record this hiding for later.
1433 HiddenNamesMap[Owner].push_back(
1434 HiddenName(II, MI, Update->second[I].second.UndefLoc));
1435 }
1436 }
1437 }
1438
1439 if (!Hidden) {
1440 MI->setUndefLoc(Update->second[I].second.UndefLoc);
1441 if (PPMutationListener *Listener = PP.getPPMutationListener())
1442 Listener->UndefinedMacro(MI);
1443 break;
1444 }
1445 }
Douglas Gregora8235d62012-10-09 23:05:51 +00001446 }
1447 MacroUpdates.erase(Update);
1448 }
1449
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001450 // Determine whether this macro definition is visible.
1451 bool Hidden = !MI->isPublic();
1452 if (!Hidden && GlobalSubmoduleID) {
1453 if (Module *Owner = getSubmodule(GlobalSubmoduleID)) {
1454 if (Owner->NameVisibility == Module::Hidden) {
1455 // The owning module is not visible, and this macro definition
1456 // should not be, either.
1457 Hidden = true;
1458
1459 // Note that this macro definition was hidden because its owning
1460 // module is not yet visible.
1461 HiddenNamesMap[Owner].push_back(HiddenName(II, MI));
1462 }
1463 }
1464 }
1465 MI->setHidden(Hidden);
1466
Douglas Gregore8219a62012-10-11 21:07:39 +00001467 // Make sure we install the macro once we're done.
1468 AddLoadedMacroInfo.MI = MI;
1469 AddLoadedMacroInfo.II = II;
Douglas Gregor37e26842009-04-21 23:56:24 +00001470
1471 // Remember that we saw this macro last so that we add the tokens that
1472 // form its body to it.
1473 Macro = MI;
Michael J. Spencer20249a12010-10-21 03:16:25 +00001474
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00001475 if (NextIndex + 1 == Record.size() && PP.getPreprocessingRecord() &&
1476 Record[NextIndex]) {
1477 // We have a macro definition. Register the association
1478 PreprocessedEntityID
1479 GlobalID = getGlobalPreprocessedEntityID(F, Record[NextIndex]);
1480 PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
1481 PPRec.RegisterMacroDefinition(Macro,
1482 PPRec.getPPEntityID(GlobalID-1, /*isLoaded=*/true));
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00001483 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00001484
Douglas Gregor37e26842009-04-21 23:56:24 +00001485 ++NumMacrosRead;
1486 break;
1487 }
Mike Stump1eb44332009-09-09 15:08:12 +00001488
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001489 case PP_TOKEN: {
Douglas Gregor37e26842009-04-21 23:56:24 +00001490 // If we see a TOKEN before a PP_MACRO_*, then the file is
1491 // erroneous, just pretend we didn't see this.
1492 if (Macro == 0) break;
Mike Stump1eb44332009-09-09 15:08:12 +00001493
Douglas Gregor37e26842009-04-21 23:56:24 +00001494 Token Tok;
1495 Tok.startToken();
Sebastian Redlc3632732010-10-05 15:59:54 +00001496 Tok.setLocation(ReadSourceLocation(F, Record[0]));
Douglas Gregor37e26842009-04-21 23:56:24 +00001497 Tok.setLength(Record[1]);
Douglas Gregor95eab172011-07-28 20:55:49 +00001498 if (IdentifierInfo *II = getLocalIdentifier(F, Record[2]))
Douglas Gregor37e26842009-04-21 23:56:24 +00001499 Tok.setIdentifierInfo(II);
1500 Tok.setKind((tok::TokenKind)Record[3]);
1501 Tok.setFlag((Token::TokenFlags)Record[4]);
1502 Macro->AddTokenToBody(Tok);
1503 break;
1504 }
David Blaikie7530c032012-01-17 06:56:22 +00001505 }
Douglas Gregor4800a5c2011-02-08 21:58:10 +00001506 }
Douglas Gregor37e26842009-04-21 23:56:24 +00001507}
1508
Douglas Gregor86c67d82011-07-28 22:39:26 +00001509PreprocessedEntityID
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001510ASTReader::getGlobalPreprocessedEntityID(ModuleFile &M, unsigned LocalID) const {
Argyrios Kyrtzidis1f6d2252011-09-19 20:40:02 +00001511 ContinuousRangeMap<uint32_t, int, 2>::const_iterator
Douglas Gregor272b6bc2011-08-04 18:56:47 +00001512 I = M.PreprocessedEntityRemap.find(LocalID - NUM_PREDEF_PP_ENTITY_IDS);
1513 assert(I != M.PreprocessedEntityRemap.end()
1514 && "Invalid index into preprocessed entity index remap");
1515
1516 return LocalID + I->second;
Douglas Gregor86c67d82011-07-28 22:39:26 +00001517}
1518
Douglas Gregor98339b92011-08-25 20:47:51 +00001519unsigned HeaderFileInfoTrait::ComputeHash(const char *path) {
1520 return llvm::HashString(llvm::sys::path::filename(path));
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001521}
Douglas Gregor98339b92011-08-25 20:47:51 +00001522
1523HeaderFileInfoTrait::internal_key_type
1524HeaderFileInfoTrait::GetInternalKey(const char *path) { return path; }
1525
1526bool HeaderFileInfoTrait::EqualKey(internal_key_type a, internal_key_type b) {
1527 if (strcmp(a, b) == 0)
1528 return true;
1529
1530 if (llvm::sys::path::filename(a) != llvm::sys::path::filename(b))
1531 return false;
Douglas Gregor99a922b2011-12-09 16:22:07 +00001532
1533 // Determine whether the actual files are equivalent.
1534 bool Result = false;
1535 if (llvm::sys::fs::equivalent(a, b, Result))
Douglas Gregor98339b92011-08-25 20:47:51 +00001536 return false;
1537
Douglas Gregor99a922b2011-12-09 16:22:07 +00001538 return Result;
Douglas Gregor98339b92011-08-25 20:47:51 +00001539}
1540
1541std::pair<unsigned, unsigned>
1542HeaderFileInfoTrait::ReadKeyDataLength(const unsigned char*& d) {
1543 unsigned KeyLen = (unsigned) clang::io::ReadUnalignedLE16(d);
1544 unsigned DataLen = (unsigned) *d++;
1545 return std::make_pair(KeyLen + 1, DataLen);
1546}
1547
1548HeaderFileInfoTrait::data_type
1549HeaderFileInfoTrait::ReadData(const internal_key_type, const unsigned char *d,
1550 unsigned DataLen) {
1551 const unsigned char *End = d + DataLen;
1552 using namespace clang::io;
1553 HeaderFileInfo HFI;
1554 unsigned Flags = *d++;
1555 HFI.isImport = (Flags >> 5) & 0x01;
1556 HFI.isPragmaOnce = (Flags >> 4) & 0x01;
1557 HFI.DirInfo = (Flags >> 2) & 0x03;
1558 HFI.Resolved = (Flags >> 1) & 0x01;
1559 HFI.IndexHeaderMapHeader = Flags & 0x01;
1560 HFI.NumIncludes = ReadUnalignedLE16(d);
Douglas Gregor541ba162011-10-17 18:53:12 +00001561 HFI.ControllingMacroID = Reader.getGlobalIdentifierID(M,
1562 ReadUnalignedLE32(d));
Douglas Gregor98339b92011-08-25 20:47:51 +00001563 if (unsigned FrameworkOffset = ReadUnalignedLE32(d)) {
1564 // The framework offset is 1 greater than the actual offset,
1565 // since 0 is used as an indicator for "no framework name".
1566 StringRef FrameworkName(FrameworkStrings + FrameworkOffset - 1);
1567 HFI.Framework = HS->getUniqueFrameworkName(FrameworkName);
1568 }
1569
1570 assert(End == d && "Wrong data length in HeaderFileInfo deserialization");
1571 (void)End;
1572
1573 // This HeaderFileInfo was externally loaded.
1574 HFI.External = true;
1575 return HFI;
1576}
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00001577
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001578void ASTReader::setIdentifierIsMacro(IdentifierInfo *II, ArrayRef<MacroID> IDs){
1579 II->setHadMacroDefinition(true);
1580 assert(NumCurrentElementsDeserializing > 0 &&"Missing deserialization guard");
1581 PendingMacroIDs[II].append(IDs.begin(), IDs.end());
Douglas Gregor295a2a62010-10-30 00:23:06 +00001582}
1583
Sebastian Redlc43b54c2010-08-18 23:56:43 +00001584void ASTReader::ReadDefinedMacros() {
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001585 // Note that we are loading defined macros.
1586 Deserializing Macros(this);
1587
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00001588 for (ModuleReverseIterator I = ModuleMgr.rbegin(),
1589 E = ModuleMgr.rend(); I != E; ++I) {
1590 llvm::BitstreamCursor &MacroCursor = (*I)->MacroCursor;
Sebastian Redl9137a522010-07-16 17:50:48 +00001591
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001592 // If there was no preprocessor block, skip this file.
1593 if (!MacroCursor.getBitStreamReader())
1594 continue;
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00001595
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001596 llvm::BitstreamCursor Cursor = MacroCursor;
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00001597 Cursor.JumpToBit((*I)->MacroStartOffset);
Michael J. Spencer20249a12010-10-21 03:16:25 +00001598
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001599 RecordData Record;
1600 while (true) {
1601 unsigned Code = Cursor.ReadCode();
Douglas Gregorecdcb882010-10-20 22:00:55 +00001602 if (Code == llvm::bitc::END_BLOCK)
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001603 break;
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00001604
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001605 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
1606 // No known subblocks, always skip them.
1607 Cursor.ReadSubBlockID();
1608 if (Cursor.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00001609 Error("malformed block record in AST file");
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001610 return;
1611 }
1612 continue;
1613 }
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00001614
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001615 if (Code == llvm::bitc::DEFINE_ABBREV) {
1616 Cursor.ReadAbbrevRecord();
1617 continue;
1618 }
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00001619
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001620 // Read a record.
1621 const char *BlobStart;
1622 unsigned BlobLen;
1623 Record.clear();
1624 switch (Cursor.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
1625 default: // Default behavior: ignore.
1626 break;
Douglas Gregor88a35862010-01-04 19:18:44 +00001627
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001628 case PP_MACRO_OBJECT_LIKE:
1629 case PP_MACRO_FUNCTION_LIKE:
Douglas Gregor95eab172011-07-28 20:55:49 +00001630 getLocalIdentifier(**I, Record[0]);
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001631 break;
1632
Sebastian Redl8538e8d2010-08-18 23:57:32 +00001633 case PP_TOKEN:
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001634 // Ignore tokens.
1635 break;
Sebastian Redld27d3fc2010-07-21 22:31:37 +00001636 }
Douglas Gregor88a35862010-01-04 19:18:44 +00001637 }
1638 }
Douglas Gregor295a2a62010-10-30 00:23:06 +00001639}
1640
Douglas Gregoreee242f2011-10-27 09:33:13 +00001641namespace {
1642 /// \brief Visitor class used to look up identifirs in an AST file.
1643 class IdentifierLookupVisitor {
1644 StringRef Name;
Douglas Gregor057df202012-01-18 20:56:22 +00001645 unsigned PriorGeneration;
Douglas Gregoreee242f2011-10-27 09:33:13 +00001646 IdentifierInfo *Found;
1647 public:
Douglas Gregor057df202012-01-18 20:56:22 +00001648 IdentifierLookupVisitor(StringRef Name, unsigned PriorGeneration)
1649 : Name(Name), PriorGeneration(PriorGeneration), Found() { }
Douglas Gregoreee242f2011-10-27 09:33:13 +00001650
Douglas Gregor1a4761e2011-11-30 23:21:26 +00001651 static bool visit(ModuleFile &M, void *UserData) {
Douglas Gregoreee242f2011-10-27 09:33:13 +00001652 IdentifierLookupVisitor *This
1653 = static_cast<IdentifierLookupVisitor *>(UserData);
1654
Douglas Gregor057df202012-01-18 20:56:22 +00001655 // If we've already searched this module file, skip it now.
1656 if (M.Generation <= This->PriorGeneration)
1657 return true;
1658
Douglas Gregoreee242f2011-10-27 09:33:13 +00001659 ASTIdentifierLookupTable *IdTable
1660 = (ASTIdentifierLookupTable *)M.IdentifierLookupTable;
1661 if (!IdTable)
1662 return false;
1663
Douglas Gregor5d5051f2012-01-24 15:24:38 +00001664 ASTIdentifierLookupTrait Trait(IdTable->getInfoObj().getReader(),
1665 M, This->Found);
1666
Douglas Gregoreee242f2011-10-27 09:33:13 +00001667 std::pair<const char*, unsigned> Key(This->Name.begin(),
1668 This->Name.size());
Douglas Gregor5d5051f2012-01-24 15:24:38 +00001669 ASTIdentifierLookupTable::iterator Pos = IdTable->find(Key, &Trait);
Douglas Gregoreee242f2011-10-27 09:33:13 +00001670 if (Pos == IdTable->end())
1671 return false;
1672
1673 // Dereferencing the iterator has the effect of building the
1674 // IdentifierInfo node and populating it with the various
1675 // declarations it needs.
1676 This->Found = *Pos;
1677 return true;
1678 }
1679
1680 // \brief Retrieve the identifier info found within the module
1681 // files.
1682 IdentifierInfo *getIdentifierInfo() const { return Found; }
1683 };
1684}
1685
1686void ASTReader::updateOutOfDateIdentifier(IdentifierInfo &II) {
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00001687 // Note that we are loading an identifier.
1688 Deserializing AnIdentifier(this);
1689
Douglas Gregor057df202012-01-18 20:56:22 +00001690 unsigned PriorGeneration = 0;
David Blaikie4e4d0842012-03-11 07:00:24 +00001691 if (getContext().getLangOpts().Modules)
Douglas Gregor057df202012-01-18 20:56:22 +00001692 PriorGeneration = IdentifierGeneration[&II];
1693
1694 IdentifierLookupVisitor Visitor(II.getName(), PriorGeneration);
1695 ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
1696 markIdentifierUpToDate(&II);
1697}
1698
1699void ASTReader::markIdentifierUpToDate(IdentifierInfo *II) {
1700 if (!II)
1701 return;
1702
1703 II->setOutOfDate(false);
1704
1705 // Update the generation for this identifier.
David Blaikie4e4d0842012-03-11 07:00:24 +00001706 if (getContext().getLangOpts().Modules)
Douglas Gregor057df202012-01-18 20:56:22 +00001707 IdentifierGeneration[II] = CurrentGeneration;
Douglas Gregoreee242f2011-10-27 09:33:13 +00001708}
1709
Chris Lattner5f9e2722011-07-23 10:55:15 +00001710const FileEntry *ASTReader::getFileEntry(StringRef filenameStrRef) {
Douglas Gregor69e16082012-10-18 21:47:16 +00001711 ModuleFile &M = ModuleMgr.getPrimaryModule();
Argyrios Kyrtzidisb68ffb12011-06-01 05:43:53 +00001712 std::string Filename = filenameStrRef;
Douglas Gregor69e16082012-10-18 21:47:16 +00001713 MaybeAddSystemRootToFilename(M, Filename);
Argyrios Kyrtzidisb68ffb12011-06-01 05:43:53 +00001714 const FileEntry *File = FileMgr.getFile(Filename);
Douglas Gregor69e16082012-10-18 21:47:16 +00001715 if (File == 0 && !M.OriginalDir.empty() && !CurrentDir.empty() &&
1716 M.OriginalDir != CurrentDir) {
Argyrios Kyrtzidisb68ffb12011-06-01 05:43:53 +00001717 std::string resolved = resolveFileRelativeToOriginalDir(Filename,
Douglas Gregor69e16082012-10-18 21:47:16 +00001718 M.OriginalDir,
Argyrios Kyrtzidisb68ffb12011-06-01 05:43:53 +00001719 CurrentDir);
1720 if (!resolved.empty())
1721 File = FileMgr.getFile(resolved);
1722 }
1723
1724 return File;
1725}
1726
Douglas Gregore650c8c2009-07-07 00:12:59 +00001727/// \brief If we are loading a relocatable PCH file, and the filename is
1728/// not an absolute path, add the system root to the beginning of the file
1729/// name.
Douglas Gregorcaed0602012-10-18 21:31:35 +00001730void ASTReader::MaybeAddSystemRootToFilename(ModuleFile &M,
1731 std::string &Filename) {
Douglas Gregore650c8c2009-07-07 00:12:59 +00001732 // If this is not a relocatable PCH file, there's nothing to do.
Douglas Gregorcaed0602012-10-18 21:31:35 +00001733 if (!M.RelocatablePCH)
Douglas Gregore650c8c2009-07-07 00:12:59 +00001734 return;
Mike Stump1eb44332009-09-09 15:08:12 +00001735
Michael J. Spencer256053b2010-12-17 21:22:22 +00001736 if (Filename.empty() || llvm::sys::path::is_absolute(Filename))
Douglas Gregore650c8c2009-07-07 00:12:59 +00001737 return;
1738
Douglas Gregor832d6202011-07-22 16:35:34 +00001739 if (isysroot.empty()) {
Douglas Gregore650c8c2009-07-07 00:12:59 +00001740 // If no system root was given, default to '/'
1741 Filename.insert(Filename.begin(), '/');
1742 return;
1743 }
Mike Stump1eb44332009-09-09 15:08:12 +00001744
Douglas Gregor832d6202011-07-22 16:35:34 +00001745 unsigned Length = isysroot.size();
Douglas Gregore650c8c2009-07-07 00:12:59 +00001746 if (isysroot[Length - 1] != '/')
1747 Filename.insert(Filename.begin(), '/');
Mike Stump1eb44332009-09-09 15:08:12 +00001748
Douglas Gregor832d6202011-07-22 16:35:34 +00001749 Filename.insert(Filename.begin(), isysroot.begin(), isysroot.end());
Douglas Gregore650c8c2009-07-07 00:12:59 +00001750}
1751
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001752ASTReader::ASTReadResult ASTReader::ReadControlBlock(ModuleFile &F,
1753 llvm::SmallVectorImpl<ModuleFile *> &Loaded) {
1754 llvm::BitstreamCursor &Stream = F.Stream;
1755
1756 if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
1757 Error("malformed block record in AST file");
1758 return Failure;
1759 }
1760
1761 // Read all of the records and blocks in the control block.
1762 RecordData Record;
1763 while (!Stream.AtEndOfStream()) {
1764 unsigned Code = Stream.ReadCode();
1765 if (Code == llvm::bitc::END_BLOCK) {
1766 if (Stream.ReadBlockEnd()) {
1767 Error("error at end of control block in AST file");
1768 return Failure;
1769 }
1770
1771 return Success;
1772 }
1773
1774 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
Douglas Gregor745e6f12012-10-19 00:38:02 +00001775 switch (Stream.ReadSubBlockID()) {
1776 case INPUT_FILES_BLOCK_ID:
1777 switch (ReadInputFilesBlock(F)) {
1778 case Success:
1779 break;
1780
1781 case Failure:
1782 return Failure;
1783
1784 case IgnorePCH:
1785 // FIXME: We could consider reading through to the end of this
1786 // AST block, skipping subblocks, to see if there are other
1787 // AST blocks elsewhere.
1788 return IgnorePCH;
1789 }
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001790 continue;
Douglas Gregor745e6f12012-10-19 00:38:02 +00001791
1792 default:
1793 if (!Stream.SkipBlock())
1794 continue;
1795 break;
1796 }
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001797
1798 Error("malformed block record in AST file");
1799 return Failure;
1800 }
1801
1802 if (Code == llvm::bitc::DEFINE_ABBREV) {
1803 Stream.ReadAbbrevRecord();
1804 continue;
1805 }
1806
1807 // Read and process a record.
1808 Record.clear();
1809 const char *BlobStart = 0;
1810 unsigned BlobLen = 0;
1811 switch ((ControlRecordTypes)Stream.ReadRecord(Code, Record,
1812 &BlobStart, &BlobLen)) {
1813 case METADATA: {
1814 if (Record[0] != VERSION_MAJOR && !DisableValidation) {
1815 Diag(Record[0] < VERSION_MAJOR? diag::warn_pch_version_too_old
1816 : diag::warn_pch_version_too_new);
1817 return IgnorePCH;
1818 }
1819
1820 bool hasErrors = Record[5];
1821 if (hasErrors && !DisableValidation && !AllowASTWithCompilerErrors) {
1822 Diag(diag::err_pch_with_compiler_errors);
1823 return IgnorePCH;
1824 }
1825
Douglas Gregorcaed0602012-10-18 21:31:35 +00001826 F.RelocatablePCH = Record[4];
Douglas Gregor7ae467f2012-10-18 18:27:37 +00001827
1828 const std::string &CurBranch = getClangFullRepositoryVersion();
1829 StringRef ASTBranch(BlobStart, BlobLen);
1830 if (StringRef(CurBranch) != ASTBranch && !DisableValidation) {
1831 Diag(diag::warn_pch_different_branch) << ASTBranch << CurBranch;
1832 return IgnorePCH;
1833 }
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001834 break;
1835 }
1836
1837 case IMPORTS: {
1838 // Load each of the imported PCH files.
1839 unsigned Idx = 0, N = Record.size();
1840 while (Idx < N) {
1841 // Read information about the AST file.
1842 ModuleKind ImportedKind = (ModuleKind)Record[Idx++];
1843 unsigned Length = Record[Idx++];
1844 SmallString<128> ImportedFile(Record.begin() + Idx,
1845 Record.begin() + Idx + Length);
1846 Idx += Length;
1847
1848 // Load the AST file.
1849 switch(ReadASTCore(ImportedFile, ImportedKind, &F, Loaded)) {
1850 case Failure: return Failure;
1851 // If we have to ignore the dependency, we'll have to ignore this too.
1852 case IgnorePCH: return IgnorePCH;
1853 case Success: break;
1854 }
1855 }
1856 break;
1857 }
1858
1859 case LANGUAGE_OPTIONS:
Douglas Gregor11407b82012-10-18 21:18:25 +00001860 if (Listener && &F == *ModuleMgr.begin() &&
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001861 ParseLanguageOptions(F, Record) && !DisableValidation)
1862 return IgnorePCH;
1863 break;
1864
Douglas Gregoree097c12012-10-18 17:58:09 +00001865 case TARGET_OPTIONS: {
1866 if (Listener && &F == *ModuleMgr.begin()) {
1867 unsigned Idx = 0;
1868 TargetOptions TargetOpts;
1869 TargetOpts.Triple = ReadString(Record, Idx);
1870 TargetOpts.CPU = ReadString(Record, Idx);
1871 TargetOpts.ABI = ReadString(Record, Idx);
1872 TargetOpts.CXXABI = ReadString(Record, Idx);
1873 TargetOpts.LinkerVersion = ReadString(Record, Idx);
1874 for (unsigned N = Record[Idx++]; N; --N) {
1875 TargetOpts.FeaturesAsWritten.push_back(ReadString(Record, Idx));
1876 }
1877 for (unsigned N = Record[Idx++]; N; --N) {
1878 TargetOpts.Features.push_back(ReadString(Record, Idx));
1879 }
1880
Douglas Gregor11407b82012-10-18 21:18:25 +00001881 if (Listener->ReadTargetOptions(F, TargetOpts) && !DisableValidation)
Douglas Gregoree097c12012-10-18 17:58:09 +00001882 return IgnorePCH;
1883 }
1884 break;
1885 }
1886
Douglas Gregor39c497b2012-10-18 18:36:53 +00001887 case ORIGINAL_FILE:
Douglas Gregor69e16082012-10-18 21:47:16 +00001888 F.OriginalSourceFileID = FileID::get(Record[0]);
1889 F.ActualOriginalSourceFileName.assign(BlobStart, BlobLen);
1890 F.OriginalSourceFileName = F.ActualOriginalSourceFileName;
1891 MaybeAddSystemRootToFilename(F, F.OriginalSourceFileName);
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001892 break;
1893
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001894 case ORIGINAL_PCH_DIR:
Douglas Gregor69e16082012-10-18 21:47:16 +00001895 F.OriginalDir.assign(BlobStart, BlobLen);
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001896 break;
Douglas Gregor1d9d9892012-10-18 05:31:06 +00001897 }
1898 }
1899
1900 Error("premature end of bitstream in AST file");
1901 return Failure;
1902}
1903
Douglas Gregor745e6f12012-10-19 00:38:02 +00001904ASTReader::ASTReadResult ASTReader::ReadInputFilesBlock(ModuleFile &F) {
1905 llvm::BitstreamCursor &Stream = F.Stream;
1906
1907 // If we're not doing any validation, there's no reason to read this
1908 // input-files block.
1909 if (DisableValidation) {
1910 return Stream.SkipBlock()? Failure : Success;
1911 }
1912
1913 if (Stream.EnterSubBlock(INPUT_FILES_BLOCK_ID)) {
1914 Error("malformed block record in AST file");
1915 return Failure;
1916 }
1917
1918 // Read all of the records and blocks for the AST file.
1919 RecordData Record;
1920 while (!Stream.AtEndOfStream()) {
1921 unsigned Code = Stream.ReadCode();
1922 if (Code == llvm::bitc::END_BLOCK) {
1923 if (Stream.ReadBlockEnd()) {
1924 Error("error at end of module block in AST file");
1925 return Failure;
1926 }
1927
1928 DeclContext *DC = Context.getTranslationUnitDecl();
1929 if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage())
1930 DC->setMustBuildLookupTable();
1931
1932 return Success;
1933 }
1934
1935 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
1936 Stream.ReadSubBlockID();
1937 if (!Stream.SkipBlock())
1938 continue;
1939 Error("malformed block record in AST file");
1940 return Failure;
1941 }
1942
1943 if (Code == llvm::bitc::DEFINE_ABBREV) {
1944 Stream.ReadAbbrevRecord();
1945 continue;
1946 }
1947
1948 // Read and process a record.
1949 Record.clear();
1950 const char *BlobStart = 0;
1951 unsigned BlobLen = 0;
1952 switch ((InputFileRecordTypes)Stream.ReadRecord(Code, Record,
1953 &BlobStart, &BlobLen)) {
1954 case INPUT_FILE: {
1955 // Check that the file exists.
1956 StringRef Filename(BlobStart, BlobLen);
1957 const FileEntry *File = getFileEntry(Filename);
1958 if (File == 0) {
1959 std::string ErrorStr = "could not find file '";
1960 ErrorStr += Filename;
1961 ErrorStr += "' referenced by AST file";
1962 Error(ErrorStr.c_str());
1963 return IgnorePCH;
1964 }
1965
1966 off_t StoredSize = (off_t)Record[0];
1967 time_t StoredTime = (time_t)Record[1];
1968
1969 // Check if there was a request to override the contents of the file
1970 // that was part of the precompiled header. Overridding such a file
1971 // can lead to problems when lexing using the source locations from the
1972 // PCH.
1973 SourceManager &SM = getSourceManager();
1974 if (SM.isFileOverridden(File)) {
1975 Error(diag::err_fe_pch_file_overridden, Filename);
1976 // After emitting the diagnostic, recover by disabling the override so
1977 // that the original file will be used.
1978 SM.disableFileContentsOverride(File);
1979 // The FileEntry is a virtual file entry with the size of the contents
1980 // that would override the original contents. Set it to the original's
1981 // size/time.
1982 FileMgr.modifyFileEntry(const_cast<FileEntry*>(File),
1983 StoredSize, StoredTime);
1984 }
1985
1986 // The stat info from the FileEntry came from the cached stat
1987 // info of the PCH, so we cannot trust it.
1988 struct stat StatBuf;
1989 if (::stat(File->getName(), &StatBuf) != 0) {
1990 StatBuf.st_size = File->getSize();
1991 StatBuf.st_mtime = File->getModificationTime();
1992 }
1993
1994 if ((StoredSize != StatBuf.st_size
1995#if !defined(LLVM_ON_WIN32)
1996 // In our regression testing, the Windows file system seems to
1997 // have inconsistent modification times that sometimes
1998 // erroneously trigger this error-handling path.
1999 || StoredTime != StatBuf.st_mtime
2000#endif
2001 )) {
2002 Error(diag::err_fe_pch_file_modified, Filename);
2003 return IgnorePCH;
2004 }
2005
2006 break;
2007 }
2008 }
2009 }
2010
2011 Error("premature end of bitstream in AST file");
2012 return Failure;
2013}
2014
Sebastian Redlc43b54c2010-08-18 23:56:43 +00002015ASTReader::ASTReadResult
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002016ASTReader::ReadASTBlock(ModuleFile &F) {
Sebastian Redl9137a522010-07-16 17:50:48 +00002017 llvm::BitstreamCursor &Stream = F.Stream;
2018
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002019 if (Stream.EnterSubBlock(AST_BLOCK_ID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002020 Error("malformed block record in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002021 return Failure;
2022 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00002023
Douglas Gregor1d9d9892012-10-18 05:31:06 +00002024 // Read all of the records and blocks for the AST file.
Douglas Gregor8038d512009-04-10 17:25:41 +00002025 RecordData Record;
Douglas Gregor2cf26342009-04-09 22:27:44 +00002026 while (!Stream.AtEndOfStream()) {
2027 unsigned Code = Stream.ReadCode();
2028 if (Code == llvm::bitc::END_BLOCK) {
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002029 if (Stream.ReadBlockEnd()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002030 Error("error at end of module block in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002031 return Failure;
2032 }
Chris Lattner7356a312009-04-11 21:15:38 +00002033
Argyrios Kyrtzidis1f941242012-09-21 01:30:00 +00002034 DeclContext *DC = Context.getTranslationUnitDecl();
2035 if (!DC->hasExternalVisibleStorage() && DC->hasExternalLexicalStorage())
2036 DC->setMustBuildLookupTable();
2037
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002038 return Success;
Douglas Gregor2cf26342009-04-09 22:27:44 +00002039 }
2040
2041 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
2042 switch (Stream.ReadSubBlockID()) {
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002043 case DECLTYPES_BLOCK_ID:
Chris Lattner6367f6d2009-04-27 01:05:14 +00002044 // We lazily load the decls block, but we want to set up the
2045 // DeclsCursor cursor to point into it. Clone our current bitcode
2046 // cursor to it, enter the block and read the abbrevs in that block.
2047 // With the main cursor, we just skip over it.
Sebastian Redl9137a522010-07-16 17:50:48 +00002048 F.DeclsCursor = Stream;
Chris Lattner6367f6d2009-04-27 01:05:14 +00002049 if (Stream.SkipBlock() || // Skip with the main cursor.
2050 // Read the abbrevs.
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002051 ReadBlockAbbrevs(F.DeclsCursor, DECLTYPES_BLOCK_ID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002052 Error("malformed block record in AST file");
Chris Lattner6367f6d2009-04-27 01:05:14 +00002053 return Failure;
2054 }
2055 break;
Mike Stump1eb44332009-09-09 15:08:12 +00002056
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002057 case DECL_UPDATES_BLOCK_ID:
2058 if (Stream.SkipBlock()) {
2059 Error("malformed block record in AST file");
2060 return Failure;
2061 }
2062 break;
2063
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002064 case PREPROCESSOR_BLOCK_ID:
Sebastian Redl9137a522010-07-16 17:50:48 +00002065 F.MacroCursor = Stream;
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002066 if (!PP.getExternalSource())
2067 PP.setExternalSource(this);
Douglas Gregor88a35862010-01-04 19:18:44 +00002068
Douglas Gregorecdcb882010-10-20 22:00:55 +00002069 if (Stream.SkipBlock() ||
2070 ReadBlockAbbrevs(F.MacroCursor, PREPROCESSOR_BLOCK_ID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002071 Error("malformed block record in AST file");
Chris Lattner7356a312009-04-11 21:15:38 +00002072 return Failure;
2073 }
Douglas Gregorecdcb882010-10-20 22:00:55 +00002074 F.MacroStartOffset = F.MacroCursor.GetCurrentBitNo();
Chris Lattner7356a312009-04-11 21:15:38 +00002075 break;
Steve Naroff90cd1bb2009-04-23 10:39:46 +00002076
Douglas Gregor4800a5c2011-02-08 21:58:10 +00002077 case PREPROCESSOR_DETAIL_BLOCK_ID:
2078 F.PreprocessorDetailCursor = Stream;
2079 if (Stream.SkipBlock() ||
2080 ReadBlockAbbrevs(F.PreprocessorDetailCursor,
2081 PREPROCESSOR_DETAIL_BLOCK_ID)) {
2082 Error("malformed preprocessor detail record in AST file");
2083 return Failure;
2084 }
2085 F.PreprocessorDetailStartOffset
2086 = F.PreprocessorDetailCursor.GetCurrentBitNo();
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002087
2088 if (!PP.getPreprocessingRecord())
Argyrios Kyrtzidisc6c54522012-03-05 05:48:17 +00002089 PP.createPreprocessingRecord(/*RecordConditionalDirectives=*/false);
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002090 if (!PP.getPreprocessingRecord()->getExternalSource())
2091 PP.getPreprocessingRecord()->SetExternalSource(*this);
Douglas Gregor4800a5c2011-02-08 21:58:10 +00002092 break;
2093
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002094 case SOURCE_MANAGER_BLOCK_ID:
Sebastian Redl93fb9ed2010-07-19 20:52:06 +00002095 switch (ReadSourceManagerBlock(F)) {
Douglas Gregore1d918e2009-04-10 23:10:45 +00002096 case Success:
2097 break;
2098
2099 case Failure:
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002100 Error("malformed source manager block in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002101 return Failure;
Douglas Gregore1d918e2009-04-10 23:10:45 +00002102
2103 case IgnorePCH:
2104 return IgnorePCH;
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002105 }
Douglas Gregor14f79002009-04-10 03:52:48 +00002106 break;
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002107
2108 case SUBMODULE_BLOCK_ID:
2109 switch (ReadSubmoduleBlock(F)) {
2110 case Success:
2111 break;
2112
2113 case Failure:
2114 Error("malformed submodule block in AST file");
2115 return Failure;
2116
2117 case IgnorePCH:
2118 return IgnorePCH;
2119 }
2120 break;
2121
Dmitri Gribenkoaa0cd852012-06-20 00:34:58 +00002122 case COMMENTS_BLOCK_ID: {
2123 llvm::BitstreamCursor C = Stream;
2124 if (Stream.SkipBlock() ||
2125 ReadBlockAbbrevs(C, COMMENTS_BLOCK_ID)) {
2126 Error("malformed comments block in AST file");
2127 return Failure;
2128 }
2129 CommentsCursors.push_back(std::make_pair(C, &F));
2130 break;
2131 }
2132
Douglas Gregor392ed2b2011-11-30 17:33:56 +00002133 default:
2134 if (!Stream.SkipBlock())
2135 break;
2136 Error("malformed block record in AST file");
2137 return Failure;
Douglas Gregor2cf26342009-04-09 22:27:44 +00002138 }
Douglas Gregor8038d512009-04-10 17:25:41 +00002139 continue;
2140 }
2141
2142 if (Code == llvm::bitc::DEFINE_ABBREV) {
2143 Stream.ReadAbbrevRecord();
2144 continue;
2145 }
2146
2147 // Read and process a record.
2148 Record.clear();
Douglas Gregor2bec0412009-04-10 21:16:55 +00002149 const char *BlobStart = 0;
2150 unsigned BlobLen = 0;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002151 switch ((ASTRecordTypes)Stream.ReadRecord(Code, Record,
Sebastian Redlc3632732010-10-05 15:59:54 +00002152 &BlobStart, &BlobLen)) {
Douglas Gregor8038d512009-04-10 17:25:41 +00002153 default: // Default behavior: ignore.
2154 break;
2155
Douglas Gregora119da02011-08-02 16:26:37 +00002156 case TYPE_OFFSET: {
Sebastian Redl12d6da02010-07-19 22:06:55 +00002157 if (F.LocalNumTypes != 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002158 Error("duplicate TYPE_OFFSET record in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002159 return Failure;
2160 }
Sebastian Redl12d6da02010-07-19 22:06:55 +00002161 F.TypeOffsets = (const uint32_t *)BlobStart;
2162 F.LocalNumTypes = Record[0];
Douglas Gregore3605012011-08-02 18:32:54 +00002163 unsigned LocalBaseTypeIndex = Record[1];
2164 F.BaseTypeIndex = getTotalNumTypes();
Douglas Gregor1e849b62011-07-29 00:21:44 +00002165
Douglas Gregora119da02011-08-02 16:26:37 +00002166 if (F.LocalNumTypes > 0) {
2167 // Introduce the global -> local mapping for types within this module.
2168 GlobalTypeMap.insert(std::make_pair(getTotalNumTypes(), &F));
2169
2170 // Introduce the local -> global mapping for types within this module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00002171 F.TypeRemap.insertOrReplace(
2172 std::make_pair(LocalBaseTypeIndex,
2173 F.BaseTypeIndex - LocalBaseTypeIndex));
Douglas Gregora119da02011-08-02 16:26:37 +00002174
2175 TypesLoaded.resize(TypesLoaded.size() + F.LocalNumTypes);
2176 }
Douglas Gregor8038d512009-04-10 17:25:41 +00002177 break;
Douglas Gregora119da02011-08-02 16:26:37 +00002178 }
2179
Douglas Gregor496c7092011-08-03 15:48:04 +00002180 case DECL_OFFSET: {
Sebastian Redl12d6da02010-07-19 22:06:55 +00002181 if (F.LocalNumDecls != 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002182 Error("duplicate DECL_OFFSET record in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002183 return Failure;
2184 }
Argyrios Kyrtzidis9d31fa72011-10-27 18:47:35 +00002185 F.DeclOffsets = (const DeclOffset *)BlobStart;
Sebastian Redl12d6da02010-07-19 22:06:55 +00002186 F.LocalNumDecls = Record[0];
Douglas Gregor496c7092011-08-03 15:48:04 +00002187 unsigned LocalBaseDeclID = Record[1];
Douglas Gregor9827a802011-07-29 00:56:45 +00002188 F.BaseDeclID = getTotalNumDecls();
Douglas Gregor96e973f2011-07-20 00:27:43 +00002189
Douglas Gregor496c7092011-08-03 15:48:04 +00002190 if (F.LocalNumDecls > 0) {
2191 // Introduce the global -> local mapping for declarations within this
2192 // module.
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002193 GlobalDeclMap.insert(
2194 std::make_pair(getTotalNumDecls() + NUM_PREDEF_DECL_IDS, &F));
Douglas Gregor496c7092011-08-03 15:48:04 +00002195
2196 // Introduce the local -> global mapping for declarations within this
2197 // module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00002198 F.DeclRemap.insertOrReplace(
2199 std::make_pair(LocalBaseDeclID, F.BaseDeclID - LocalBaseDeclID));
Douglas Gregor496c7092011-08-03 15:48:04 +00002200
Douglas Gregora1be2782011-12-17 23:38:30 +00002201 // Introduce the global -> local mapping for declarations within this
2202 // module.
2203 F.GlobalToLocalDeclIDs[&F] = LocalBaseDeclID;
2204
Douglas Gregor496c7092011-08-03 15:48:04 +00002205 DeclsLoaded.resize(DeclsLoaded.size() + F.LocalNumDecls);
2206 }
Douglas Gregor8038d512009-04-10 17:25:41 +00002207 break;
Douglas Gregor496c7092011-08-03 15:48:04 +00002208 }
2209
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002210 case TU_UPDATE_LEXICAL: {
Douglas Gregor35942772011-09-09 21:34:22 +00002211 DeclContext *TU = Context.getTranslationUnitDecl();
Douglas Gregor0d95f772011-08-24 19:03:07 +00002212 DeclContextInfo &Info = F.DeclContextInfos[TU];
2213 Info.LexicalDecls = reinterpret_cast<const KindDeclIDPair *>(BlobStart);
2214 Info.NumLexicalDecls
2215 = static_cast<unsigned int>(BlobLen / sizeof(KindDeclIDPair));
Douglas Gregor35942772011-09-09 21:34:22 +00002216 TU->setHasExternalLexicalStorage(true);
Sebastian Redld692af72010-07-27 18:24:41 +00002217 break;
2218 }
2219
Sebastian Redle1dde812010-08-24 00:50:04 +00002220 case UPDATE_VISIBLE: {
Douglas Gregor496c7092011-08-03 15:48:04 +00002221 unsigned Idx = 0;
2222 serialization::DeclID ID = ReadDeclID(F, Record, Idx);
Benjamin Kramerb1758c62012-04-15 12:36:49 +00002223 ASTDeclContextNameLookupTable *Table =
2224 ASTDeclContextNameLookupTable::Create(
Douglas Gregor496c7092011-08-03 15:48:04 +00002225 (const unsigned char *)BlobStart + Record[Idx++],
Sebastian Redle1dde812010-08-24 00:50:04 +00002226 (const unsigned char *)BlobStart,
Douglas Gregor393f2492011-07-22 00:38:23 +00002227 ASTDeclContextNameLookupTrait(*this, F));
Douglas Gregor35942772011-09-09 21:34:22 +00002228 if (ID == PREDEF_DECL_TRANSLATION_UNIT_ID) { // Is it the TU?
2229 DeclContext *TU = Context.getTranslationUnitDecl();
Douglas Gregor0d95f772011-08-24 19:03:07 +00002230 F.DeclContextInfos[TU].NameLookupTableData = Table;
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00002231 TU->setHasExternalVisibleStorage(true);
Sebastian Redle1dde812010-08-24 00:50:04 +00002232 } else
Douglas Gregor496c7092011-08-03 15:48:04 +00002233 PendingVisibleUpdates[ID].push_back(std::make_pair(Table, &F));
Sebastian Redle1dde812010-08-24 00:50:04 +00002234 break;
2235 }
2236
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002237 case IDENTIFIER_TABLE:
Sebastian Redl93fb9ed2010-07-19 20:52:06 +00002238 F.IdentifierTableData = BlobStart;
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002239 if (Record[0]) {
Sebastian Redl93fb9ed2010-07-19 20:52:06 +00002240 F.IdentifierLookupTable
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002241 = ASTIdentifierLookupTable::Create(
Sebastian Redl93fb9ed2010-07-19 20:52:06 +00002242 (const unsigned char *)F.IdentifierTableData + Record[0],
2243 (const unsigned char *)F.IdentifierTableData,
Sebastian Redlc3632732010-10-05 15:59:54 +00002244 ASTIdentifierLookupTrait(*this, F));
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002245
2246 PP.getIdentifierTable().setExternalIdentifierLookup(this);
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00002247 }
Douglas Gregorafaf3082009-04-11 00:14:32 +00002248 break;
2249
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002250 case IDENTIFIER_OFFSET: {
Sebastian Redl2da08f92010-07-19 22:28:42 +00002251 if (F.LocalNumIdentifiers != 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002252 Error("duplicate IDENTIFIER_OFFSET record in AST file");
Douglas Gregorafaf3082009-04-11 00:14:32 +00002253 return Failure;
2254 }
Sebastian Redl2da08f92010-07-19 22:28:42 +00002255 F.IdentifierOffsets = (const uint32_t *)BlobStart;
2256 F.LocalNumIdentifiers = Record[0];
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002257 unsigned LocalBaseIdentifierID = Record[1];
Douglas Gregor9827a802011-07-29 00:56:45 +00002258 F.BaseIdentifierID = getTotalNumIdentifiers();
Douglas Gregor67268d02011-07-20 00:59:32 +00002259
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002260 if (F.LocalNumIdentifiers > 0) {
2261 // Introduce the global -> local mapping for identifiers within this
2262 // module.
2263 GlobalIdentifierMap.insert(std::make_pair(getTotalNumIdentifiers() + 1,
2264 &F));
2265
2266 // Introduce the local -> global mapping for identifiers within this
2267 // module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00002268 F.IdentifierRemap.insertOrReplace(
2269 std::make_pair(LocalBaseIdentifierID,
2270 F.BaseIdentifierID - LocalBaseIdentifierID));
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002271
2272 IdentifiersLoaded.resize(IdentifiersLoaded.size()
2273 + F.LocalNumIdentifiers);
2274 }
Douglas Gregorafaf3082009-04-11 00:14:32 +00002275 break;
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002276 }
Douglas Gregora8235d62012-10-09 23:05:51 +00002277
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002278 case EXTERNAL_DEFINITIONS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002279 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2280 ExternalDefinitions.push_back(getGlobalDeclID(F, Record[I]));
Douglas Gregorfdd01722009-04-14 00:24:19 +00002281 break;
Douglas Gregor3e1af842009-04-17 22:13:46 +00002282
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002283 case SPECIAL_TYPES:
Douglas Gregor393f2492011-07-22 00:38:23 +00002284 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2285 SpecialTypes.push_back(getGlobalTypeID(F, Record[I]));
Douglas Gregorad1de002009-04-18 05:55:16 +00002286 break;
2287
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002288 case STATISTICS:
Sebastian Redl518d8cb2010-07-20 21:20:32 +00002289 TotalNumStatements += Record[0];
2290 TotalNumMacros += Record[1];
2291 TotalLexicalDeclContexts += Record[2];
2292 TotalVisibleDeclContexts += Record[3];
Douglas Gregor3e1af842009-04-17 22:13:46 +00002293 break;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00002294
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002295 case UNUSED_FILESCOPED_DECLS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002296 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2297 UnusedFileScopedDecls.push_back(getGlobalDeclID(F, Record[I]));
Tanya Lattnere6bbc012010-02-12 00:07:30 +00002298 break;
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00002299
Sean Huntebcbe1d2011-05-04 23:29:54 +00002300 case DELEGATING_CTORS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002301 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2302 DelegatingCtorDecls.push_back(getGlobalDeclID(F, Record[I]));
Sean Huntebcbe1d2011-05-04 23:29:54 +00002303 break;
2304
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002305 case WEAK_UNDECLARED_IDENTIFIERS:
Douglas Gregor31e37b22011-07-28 18:09:57 +00002306 if (Record.size() % 4 != 0) {
2307 Error("invalid weak identifiers record");
2308 return Failure;
2309 }
2310
2311 // FIXME: Ignore weak undeclared identifiers from non-original PCH
2312 // files. This isn't the way to do it :)
2313 WeakUndeclaredIdentifiers.clear();
2314
2315 // Translate the weak, undeclared identifiers into global IDs.
2316 for (unsigned I = 0, N = Record.size(); I < N; /* in loop */) {
2317 WeakUndeclaredIdentifiers.push_back(
2318 getGlobalIdentifierID(F, Record[I++]));
2319 WeakUndeclaredIdentifiers.push_back(
2320 getGlobalIdentifierID(F, Record[I++]));
2321 WeakUndeclaredIdentifiers.push_back(
2322 ReadSourceLocation(F, Record, I).getRawEncoding());
2323 WeakUndeclaredIdentifiers.push_back(Record[I++]);
2324 }
Argyrios Kyrtzidis72b90572010-08-05 09:48:08 +00002325 break;
2326
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002327 case LOCALLY_SCOPED_EXTERNAL_DECLS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002328 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2329 LocallyScopedExternalDecls.push_back(getGlobalDeclID(F, Record[I]));
Douglas Gregor14c22f22009-04-22 22:18:58 +00002330 break;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002331
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002332 case SELECTOR_OFFSETS: {
Sebastian Redl059612d2010-08-03 21:58:15 +00002333 F.SelectorOffsets = (const uint32_t *)BlobStart;
Sebastian Redl725cd962010-08-04 20:40:17 +00002334 F.LocalNumSelectors = Record[0];
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002335 unsigned LocalBaseSelectorID = Record[1];
Douglas Gregor9827a802011-07-29 00:56:45 +00002336 F.BaseSelectorID = getTotalNumSelectors();
Douglas Gregor96958cb2011-07-20 01:10:58 +00002337
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002338 if (F.LocalNumSelectors > 0) {
2339 // Introduce the global -> local mapping for selectors within this
2340 // module.
2341 GlobalSelectorMap.insert(std::make_pair(getTotalNumSelectors()+1, &F));
2342
2343 // Introduce the local -> global mapping for selectors within this
2344 // module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00002345 F.SelectorRemap.insertOrReplace(
2346 std::make_pair(LocalBaseSelectorID,
2347 F.BaseSelectorID - LocalBaseSelectorID));
Douglas Gregor83941df2009-04-25 17:48:32 +00002348
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002349 SelectorsLoaded.resize(SelectorsLoaded.size() + F.LocalNumSelectors);
2350 }
2351 break;
2352 }
2353
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002354 case METHOD_POOL:
Sebastian Redl725cd962010-08-04 20:40:17 +00002355 F.SelectorLookupTableData = (const unsigned char *)BlobStart;
Douglas Gregor83941df2009-04-25 17:48:32 +00002356 if (Record[0])
Sebastian Redl725cd962010-08-04 20:40:17 +00002357 F.SelectorLookupTable
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002358 = ASTSelectorLookupTable::Create(
Sebastian Redl725cd962010-08-04 20:40:17 +00002359 F.SelectorLookupTableData + Record[0],
2360 F.SelectorLookupTableData,
Douglas Gregor409448c2011-07-21 22:35:25 +00002361 ASTSelectorLookupTrait(*this, F));
Sebastian Redlfa78dec2010-08-04 21:22:45 +00002362 TotalNumMethodPoolEntries += Record[1];
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00002363 break;
Douglas Gregor2eafc1b2009-04-26 00:07:37 +00002364
Sebastian Redl4ee5a6f2010-09-22 00:42:30 +00002365 case REFERENCED_SELECTOR_POOL:
Douglas Gregor8451ec72011-07-28 14:41:43 +00002366 if (!Record.empty()) {
2367 for (unsigned Idx = 0, N = Record.size() - 1; Idx < N; /* in loop */) {
2368 ReferencedSelectorsData.push_back(getGlobalSelectorID(F,
2369 Record[Idx++]));
2370 ReferencedSelectorsData.push_back(ReadSourceLocation(F, Record, Idx).
2371 getRawEncoding());
2372 }
2373 }
Fariborz Jahanian32019832010-07-23 19:11:11 +00002374 break;
2375
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002376 case PP_COUNTER_VALUE:
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +00002377 if (!Record.empty() && Listener)
Argyrios Kyrtzidis62288ed2012-10-10 02:12:47 +00002378 Listener->ReadCounter(F, Record[0]);
Douglas Gregor2eafc1b2009-04-26 00:07:37 +00002379 break;
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00002380
2381 case FILE_SORTED_DECLS:
2382 F.FileSortedDecls = (const DeclID *)BlobStart;
Argyrios Kyrtzidis2093e0b2012-10-02 21:09:13 +00002383 F.NumFileSortedDecls = Record[0];
Argyrios Kyrtzidis10f3df52011-10-28 22:54:21 +00002384 break;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00002385
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002386 case SOURCE_LOCATION_OFFSETS: {
2387 F.SLocEntryOffsets = (const uint32_t *)BlobStart;
Sebastian Redl518d8cb2010-07-20 21:20:32 +00002388 F.LocalNumSLocEntries = Record[0];
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00002389 unsigned SLocSpaceSize = Record[1];
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002390 llvm::tie(F.SLocEntryBaseID, F.SLocEntryBaseOffset) =
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00002391 SourceMgr.AllocateLoadedSLocEntries(F.LocalNumSLocEntries,
2392 SLocSpaceSize);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002393 // Make our entry in the range map. BaseID is negative and growing, so
2394 // we invert it. Because we invert it, though, we need the other end of
2395 // the range.
2396 unsigned RangeStart =
2397 unsigned(-F.SLocEntryBaseID) - F.LocalNumSLocEntries + 1;
2398 GlobalSLocEntryMap.insert(std::make_pair(RangeStart, &F));
2399 F.FirstLoc = SourceLocation::getFromRawEncoding(F.SLocEntryBaseOffset);
2400
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00002401 // SLocEntryBaseOffset is lower than MaxLoadedOffset and decreasing.
2402 assert((F.SLocEntryBaseOffset & (1U << 31U)) == 0);
2403 GlobalSLocOffsetMap.insert(
2404 std::make_pair(SourceManager::MaxLoadedOffset - F.SLocEntryBaseOffset
2405 - SLocSpaceSize,&F));
2406
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002407 // Initialize the remapping table.
2408 // Invalid stays invalid.
2409 F.SLocRemap.insert(std::make_pair(0U, 0));
2410 // This module. Base was 2 when being compiled.
2411 F.SLocRemap.insert(std::make_pair(2U,
2412 static_cast<int>(F.SLocEntryBaseOffset - 2)));
Douglas Gregor0cdd7982011-07-21 18:46:38 +00002413
2414 TotalNumSLocEntries += F.LocalNumSLocEntries;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002415 break;
2416 }
2417
Douglas Gregor5d51a1d2011-08-01 16:01:55 +00002418 case MODULE_OFFSET_MAP: {
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002419 // Additional remapping information.
2420 const unsigned char *Data = (const unsigned char*)BlobStart;
2421 const unsigned char *DataEnd = Data + BlobLen;
Douglas Gregorf33740e2011-08-02 10:56:51 +00002422
2423 // Continuous range maps we may be updating in our module.
2424 ContinuousRangeMap<uint32_t, int, 2>::Builder SLocRemap(F.SLocRemap);
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002425 ContinuousRangeMap<uint32_t, int, 2>::Builder
2426 IdentifierRemap(F.IdentifierRemap);
Douglas Gregora8235d62012-10-09 23:05:51 +00002427 ContinuousRangeMap<uint32_t, int, 2>::Builder
2428 MacroRemap(F.MacroRemap);
2429 ContinuousRangeMap<uint32_t, int, 2>::Builder
Douglas Gregor272b6bc2011-08-04 18:56:47 +00002430 PreprocessedEntityRemap(F.PreprocessedEntityRemap);
2431 ContinuousRangeMap<uint32_t, int, 2>::Builder
Douglas Gregor26ced122011-12-01 00:59:36 +00002432 SubmoduleRemap(F.SubmoduleRemap);
2433 ContinuousRangeMap<uint32_t, int, 2>::Builder
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002434 SelectorRemap(F.SelectorRemap);
Douglas Gregor496c7092011-08-03 15:48:04 +00002435 ContinuousRangeMap<uint32_t, int, 2>::Builder DeclRemap(F.DeclRemap);
Douglas Gregora119da02011-08-02 16:26:37 +00002436 ContinuousRangeMap<uint32_t, int, 2>::Builder TypeRemap(F.TypeRemap);
2437
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002438 while(Data < DataEnd) {
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002439 uint16_t Len = io::ReadUnalignedLE16(Data);
Chris Lattner5f9e2722011-07-23 10:55:15 +00002440 StringRef Name = StringRef((const char*)Data, Len);
Douglas Gregorf33740e2011-08-02 10:56:51 +00002441 Data += Len;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00002442 ModuleFile *OM = ModuleMgr.lookup(Name);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002443 if (!OM) {
2444 Error("SourceLocation remap refers to unknown module");
2445 return Failure;
2446 }
Douglas Gregorf33740e2011-08-02 10:56:51 +00002447
2448 uint32_t SLocOffset = io::ReadUnalignedLE32(Data);
2449 uint32_t IdentifierIDOffset = io::ReadUnalignedLE32(Data);
Douglas Gregora8235d62012-10-09 23:05:51 +00002450 uint32_t MacroIDOffset = io::ReadUnalignedLE32(Data);
Douglas Gregorf33740e2011-08-02 10:56:51 +00002451 uint32_t PreprocessedEntityIDOffset = io::ReadUnalignedLE32(Data);
Douglas Gregor26ced122011-12-01 00:59:36 +00002452 uint32_t SubmoduleIDOffset = io::ReadUnalignedLE32(Data);
Douglas Gregorf33740e2011-08-02 10:56:51 +00002453 uint32_t SelectorIDOffset = io::ReadUnalignedLE32(Data);
2454 uint32_t DeclIDOffset = io::ReadUnalignedLE32(Data);
Douglas Gregora119da02011-08-02 16:26:37 +00002455 uint32_t TypeIndexOffset = io::ReadUnalignedLE32(Data);
Douglas Gregorf33740e2011-08-02 10:56:51 +00002456
2457 // Source location offset is mapped to OM->SLocEntryBaseOffset.
2458 SLocRemap.insert(std::make_pair(SLocOffset,
2459 static_cast<int>(OM->SLocEntryBaseOffset - SLocOffset)));
Douglas Gregor6ec60e02011-08-03 21:49:18 +00002460 IdentifierRemap.insert(
2461 std::make_pair(IdentifierIDOffset,
2462 OM->BaseIdentifierID - IdentifierIDOffset));
Douglas Gregora8235d62012-10-09 23:05:51 +00002463 MacroRemap.insert(std::make_pair(MacroIDOffset,
2464 OM->BaseMacroID - MacroIDOffset));
Douglas Gregor272b6bc2011-08-04 18:56:47 +00002465 PreprocessedEntityRemap.insert(
2466 std::make_pair(PreprocessedEntityIDOffset,
2467 OM->BasePreprocessedEntityID - PreprocessedEntityIDOffset));
Douglas Gregor26ced122011-12-01 00:59:36 +00002468 SubmoduleRemap.insert(std::make_pair(SubmoduleIDOffset,
2469 OM->BaseSubmoduleID - SubmoduleIDOffset));
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00002470 SelectorRemap.insert(std::make_pair(SelectorIDOffset,
2471 OM->BaseSelectorID - SelectorIDOffset));
Douglas Gregor496c7092011-08-03 15:48:04 +00002472 DeclRemap.insert(std::make_pair(DeclIDOffset,
2473 OM->BaseDeclID - DeclIDOffset));
2474
Douglas Gregora119da02011-08-02 16:26:37 +00002475 TypeRemap.insert(std::make_pair(TypeIndexOffset,
Douglas Gregore3605012011-08-02 18:32:54 +00002476 OM->BaseTypeIndex - TypeIndexOffset));
Douglas Gregora1be2782011-12-17 23:38:30 +00002477
2478 // Global -> local mappings.
2479 F.GlobalToLocalDeclIDs[OM] = DeclIDOffset;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002480 }
2481 break;
2482 }
2483
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002484 case SOURCE_MANAGER_LINE_TABLE:
2485 if (ParseLineTable(F, Record))
2486 return Failure;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00002487 break;
2488
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002489 case SOURCE_LOCATION_PRELOADS: {
2490 // Need to transform from the local view (1-based IDs) to the global view,
2491 // which is based off F.SLocEntryBaseID.
Douglas Gregorf249bf32011-08-25 21:09:44 +00002492 if (!F.PreloadSLocEntries.empty()) {
2493 Error("Multiple SOURCE_LOCATION_PRELOADS records in AST file");
2494 return Failure;
2495 }
2496
2497 F.PreloadSLocEntries.swap(Record);
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00002498 break;
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002499 }
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002500
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002501 case STAT_CACHE: {
Douglas Gregor8ef6c8c2011-02-05 19:42:43 +00002502 if (!DisableStatCache) {
2503 ASTStatCache *MyStatCache =
2504 new ASTStatCache((const unsigned char *)BlobStart + Record[0],
2505 (const unsigned char *)BlobStart,
2506 NumStatHits, NumStatMisses);
2507 FileMgr.addStatCache(MyStatCache);
2508 F.StatCache = MyStatCache;
2509 }
Douglas Gregor4fed3f42009-04-27 18:38:38 +00002510 break;
Douglas Gregor52e71082009-10-16 18:18:30 +00002511 }
Kovarththanan Rajaratnam6b82f642010-03-07 19:10:13 +00002512
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002513 case EXT_VECTOR_DECLS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002514 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2515 ExtVectorDecls.push_back(getGlobalDeclID(F, Record[I]));
Douglas Gregorb81c1702009-04-27 20:06:05 +00002516 break;
2517
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002518 case VTABLE_USES:
Douglas Gregordfe65432011-07-28 19:11:31 +00002519 if (Record.size() % 3 != 0) {
2520 Error("Invalid VTABLE_USES record");
2521 return Failure;
2522 }
2523
Sebastian Redl40566802010-08-05 18:21:25 +00002524 // Later tables overwrite earlier ones.
Douglas Gregordfe65432011-07-28 19:11:31 +00002525 // FIXME: Modules will have some trouble with this. This is clearly not
2526 // the right way to do this.
Douglas Gregor409448c2011-07-21 22:35:25 +00002527 VTableUses.clear();
Douglas Gregordfe65432011-07-28 19:11:31 +00002528
2529 for (unsigned Idx = 0, N = Record.size(); Idx != N; /* In loop */) {
2530 VTableUses.push_back(getGlobalDeclID(F, Record[Idx++]));
2531 VTableUses.push_back(
2532 ReadSourceLocation(F, Record, Idx).getRawEncoding());
2533 VTableUses.push_back(Record[Idx++]);
2534 }
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00002535 break;
2536
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002537 case DYNAMIC_CLASSES:
Douglas Gregor409448c2011-07-21 22:35:25 +00002538 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2539 DynamicClasses.push_back(getGlobalDeclID(F, Record[I]));
Argyrios Kyrtzidisd455add2010-07-06 15:37:04 +00002540 break;
2541
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002542 case PENDING_IMPLICIT_INSTANTIATIONS:
Douglas Gregorf2abb522011-07-28 19:26:52 +00002543 if (PendingInstantiations.size() % 2 != 0) {
Axel Naumann39d26c32012-10-02 09:09:43 +00002544 Error("Invalid existing PendingInstantiations");
2545 return Failure;
2546 }
2547
2548 if (Record.size() % 2 != 0) {
Douglas Gregorf2abb522011-07-28 19:26:52 +00002549 Error("Invalid PENDING_IMPLICIT_INSTANTIATIONS block");
2550 return Failure;
2551 }
Axel Naumann39d26c32012-10-02 09:09:43 +00002552
Douglas Gregorf2abb522011-07-28 19:26:52 +00002553 for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
2554 PendingInstantiations.push_back(getGlobalDeclID(F, Record[I++]));
2555 PendingInstantiations.push_back(
2556 ReadSourceLocation(F, Record, I).getRawEncoding());
2557 }
Argyrios Kyrtzidis0e036382010-08-05 09:48:16 +00002558 break;
2559
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002560 case SEMA_DECL_REFS:
Sebastian Redl40566802010-08-05 18:21:25 +00002561 // Later tables overwrite earlier ones.
Douglas Gregor409448c2011-07-21 22:35:25 +00002562 // FIXME: Modules will have some trouble with this.
2563 SemaDeclRefs.clear();
2564 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2565 SemaDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00002566 break;
2567
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00002568 case PPD_ENTITIES_OFFSETS: {
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00002569 F.PreprocessedEntityOffsets = (const PPEntityOffset *)BlobStart;
2570 assert(BlobLen % sizeof(PPEntityOffset) == 0);
2571 F.NumPreprocessedEntities = BlobLen / sizeof(PPEntityOffset);
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00002572
2573 unsigned LocalBasePreprocessedEntityID = Record[0];
Douglas Gregorfb2d9e02011-08-04 16:36:56 +00002574
Douglas Gregor4c30bb12011-07-21 00:47:40 +00002575 unsigned StartingID;
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002576 if (!PP.getPreprocessingRecord())
Argyrios Kyrtzidisc6c54522012-03-05 05:48:17 +00002577 PP.createPreprocessingRecord(/*RecordConditionalDirectives=*/false);
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002578 if (!PP.getPreprocessingRecord()->getExternalSource())
2579 PP.getPreprocessingRecord()->SetExternalSource(*this);
2580 StartingID
2581 = PP.getPreprocessingRecord()
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00002582 ->allocateLoadedEntities(F.NumPreprocessedEntities);
Douglas Gregor9827a802011-07-29 00:56:45 +00002583 F.BasePreprocessedEntityID = StartingID;
Douglas Gregor4c30bb12011-07-21 00:47:40 +00002584
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00002585 if (F.NumPreprocessedEntities > 0) {
Douglas Gregor272b6bc2011-08-04 18:56:47 +00002586 // Introduce the global -> local mapping for preprocessed entities in
2587 // this module.
2588 GlobalPreprocessedEntityMap.insert(std::make_pair(StartingID, &F));
2589
2590 // Introduce the local -> global mapping for preprocessed entities in
2591 // this module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00002592 F.PreprocessedEntityRemap.insertOrReplace(
Douglas Gregor272b6bc2011-08-04 18:56:47 +00002593 std::make_pair(LocalBasePreprocessedEntityID,
2594 F.BasePreprocessedEntityID - LocalBasePreprocessedEntityID));
2595 }
Douglas Gregor272b6bc2011-08-04 18:56:47 +00002596
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00002597 break;
Douglas Gregor4c30bb12011-07-21 00:47:40 +00002598 }
2599
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002600 case DECL_UPDATE_OFFSETS: {
2601 if (Record.size() % 2 != 0) {
2602 Error("invalid DECL_UPDATE_OFFSETS block in AST file");
2603 return Failure;
2604 }
2605 for (unsigned I = 0, N = Record.size(); I != N; I += 2)
Douglas Gregor496c7092011-08-03 15:48:04 +00002606 DeclUpdateOffsets[getGlobalDeclID(F, Record[I])]
2607 .push_back(std::make_pair(&F, Record[I+1]));
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00002608 break;
2609 }
2610
Sebastian Redl8538e8d2010-08-18 23:57:32 +00002611 case DECL_REPLACEMENTS: {
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00002612 if (Record.size() % 3 != 0) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002613 Error("invalid DECL_REPLACEMENTS block in AST file");
Sebastian Redl0b17c612010-08-13 00:28:03 +00002614 return Failure;
2615 }
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00002616 for (unsigned I = 0, N = Record.size(); I != N; I += 3)
Douglas Gregor496c7092011-08-03 15:48:04 +00002617 ReplacedDecls[getGlobalDeclID(F, Record[I])]
Argyrios Kyrtzidisef23b602011-10-31 07:20:15 +00002618 = ReplacedDeclInfo(&F, Record[I+1], Record[I+2]);
Sebastian Redl0b17c612010-08-13 00:28:03 +00002619 break;
2620 }
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002621
Douglas Gregorcff9f262012-01-27 01:47:08 +00002622 case OBJC_CATEGORIES_MAP: {
2623 if (F.LocalNumObjCCategoriesInMap != 0) {
2624 Error("duplicate OBJC_CATEGORIES_MAP record in AST file");
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002625 return Failure;
2626 }
Douglas Gregorcff9f262012-01-27 01:47:08 +00002627
2628 F.LocalNumObjCCategoriesInMap = Record[0];
2629 F.ObjCCategoriesMap = (const ObjCCategoriesInfo *)BlobStart;
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00002630 break;
2631 }
Douglas Gregor7c789c12010-10-29 22:39:52 +00002632
Douglas Gregorcff9f262012-01-27 01:47:08 +00002633 case OBJC_CATEGORIES:
2634 F.ObjCCategories.swap(Record);
2635 break;
2636
Douglas Gregor7c789c12010-10-29 22:39:52 +00002637 case CXX_BASE_SPECIFIER_OFFSETS: {
2638 if (F.LocalNumCXXBaseSpecifiers != 0) {
2639 Error("duplicate CXX_BASE_SPECIFIER_OFFSETS record in AST file");
2640 return Failure;
2641 }
2642
2643 F.LocalNumCXXBaseSpecifiers = Record[0];
2644 F.CXXBaseSpecifiersOffsets = (const uint32_t *)BlobStart;
Jonathan D. Turner1da90142011-07-21 21:15:19 +00002645 NumCXXBaseSpecifiersLoaded += F.LocalNumCXXBaseSpecifiers;
Douglas Gregor7c789c12010-10-29 22:39:52 +00002646 break;
2647 }
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002648
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00002649 case DIAG_PRAGMA_MAPPINGS:
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002650 if (Record.size() % 2 != 0) {
2651 Error("invalid DIAG_USER_MAPPINGS block in AST file");
2652 return Failure;
2653 }
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002654
2655 if (F.PragmaDiagMappings.empty())
2656 F.PragmaDiagMappings.swap(Record);
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002657 else
Douglas Gregorf62d43d2011-07-19 16:10:42 +00002658 F.PragmaDiagMappings.insert(F.PragmaDiagMappings.end(),
2659 Record.begin(), Record.end());
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00002660 break;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00002661
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00002662 case CUDA_SPECIAL_DECL_REFS:
2663 // Later tables overwrite earlier ones.
Douglas Gregor409448c2011-07-21 22:35:25 +00002664 // FIXME: Modules will have trouble with this.
2665 CUDASpecialDeclRefs.clear();
2666 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2667 CUDASpecialDeclRefs.push_back(getGlobalDeclID(F, Record[I]));
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00002668 break;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00002669
Douglas Gregorb4dc4852011-07-28 04:50:02 +00002670 case HEADER_SEARCH_TABLE: {
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00002671 F.HeaderFileInfoTableData = BlobStart;
2672 F.LocalNumHeaderFileInfos = Record[1];
Douglas Gregorb4dc4852011-07-28 04:50:02 +00002673 F.HeaderFileFrameworkStrings = BlobStart + Record[2];
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00002674 if (Record[0]) {
2675 F.HeaderFileInfoTable
2676 = HeaderFileInfoLookupTable::Create(
2677 (const unsigned char *)F.HeaderFileInfoTableData + Record[0],
Douglas Gregorb4dc4852011-07-28 04:50:02 +00002678 (const unsigned char *)F.HeaderFileInfoTableData,
Douglas Gregor95eab172011-07-28 20:55:49 +00002679 HeaderFileInfoTrait(*this, F,
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002680 &PP.getHeaderSearchInfo(),
Douglas Gregorb4dc4852011-07-28 04:50:02 +00002681 BlobStart + Record[2]));
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002682
2683 PP.getHeaderSearchInfo().SetExternalSource(this);
2684 if (!PP.getHeaderSearchInfo().getExternalLookup())
2685 PP.getHeaderSearchInfo().SetExternalLookup(this);
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00002686 }
2687 break;
Douglas Gregorb4dc4852011-07-28 04:50:02 +00002688 }
2689
Peter Collingbourne84bccea2011-02-15 19:46:30 +00002690 case FP_PRAGMA_OPTIONS:
2691 // Later tables overwrite earlier ones.
2692 FPPragmaOptions.swap(Record);
2693 break;
2694
2695 case OPENCL_EXTENSIONS:
2696 // Later tables overwrite earlier ones.
2697 OpenCLExtensions.swap(Record);
2698 break;
Sean Huntebcbe1d2011-05-04 23:29:54 +00002699
2700 case TENTATIVE_DEFINITIONS:
Douglas Gregor409448c2011-07-21 22:35:25 +00002701 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2702 TentativeDefinitions.push_back(getGlobalDeclID(F, Record[I]));
Sean Huntebcbe1d2011-05-04 23:29:54 +00002703 break;
Douglas Gregord8bba9c2011-06-28 16:20:02 +00002704
2705 case KNOWN_NAMESPACES:
Douglas Gregor409448c2011-07-21 22:35:25 +00002706 for (unsigned I = 0, N = Record.size(); I != N; ++I)
2707 KnownNamespaces.push_back(getGlobalDeclID(F, Record[I]));
Douglas Gregord8bba9c2011-06-28 16:20:02 +00002708 break;
Douglas Gregorf6137e42011-12-03 00:59:55 +00002709
2710 case IMPORTED_MODULES: {
2711 if (F.Kind != MK_Module) {
2712 // If we aren't loading a module (which has its own exports), make
2713 // all of the imported modules visible.
2714 // FIXME: Deal with macros-only imports.
2715 for (unsigned I = 0, N = Record.size(); I != N; ++I) {
2716 if (unsigned GlobalID = getGlobalSubmoduleID(F, Record[I]))
2717 ImportedModules.push_back(GlobalID);
2718 }
2719 }
2720 break;
Douglas Gregora1be2782011-12-17 23:38:30 +00002721 }
Douglas Gregor2171bf12012-01-15 16:58:34 +00002722
Douglas Gregora1be2782011-12-17 23:38:30 +00002723 case LOCAL_REDECLARATIONS: {
Douglas Gregor2171bf12012-01-15 16:58:34 +00002724 F.RedeclarationChains.swap(Record);
2725 break;
2726 }
2727
2728 case LOCAL_REDECLARATIONS_MAP: {
2729 if (F.LocalNumRedeclarationsInMap != 0) {
2730 Error("duplicate LOCAL_REDECLARATIONS_MAP record in AST file");
Douglas Gregora1be2782011-12-17 23:38:30 +00002731 return Failure;
2732 }
Douglas Gregorf6137e42011-12-03 00:59:55 +00002733
Douglas Gregor2171bf12012-01-15 16:58:34 +00002734 F.LocalNumRedeclarationsInMap = Record[0];
2735 F.RedeclarationsMap = (const LocalRedeclarationsInfo *)BlobStart;
Douglas Gregora1be2782011-12-17 23:38:30 +00002736 break;
Douglas Gregorf6137e42011-12-03 00:59:55 +00002737 }
Douglas Gregorc3cfd2a2011-12-22 21:40:42 +00002738
2739 case MERGED_DECLARATIONS: {
2740 for (unsigned Idx = 0; Idx < Record.size(); /* increment in loop */) {
2741 GlobalDeclID CanonID = getGlobalDeclID(F, Record[Idx++]);
2742 SmallVectorImpl<GlobalDeclID> &Decls = StoredMergedDecls[CanonID];
2743 for (unsigned N = Record[Idx++]; N > 0; --N)
2744 Decls.push_back(getGlobalDeclID(F, Record[Idx++]));
2745 }
2746 break;
2747 }
Douglas Gregora8235d62012-10-09 23:05:51 +00002748
2749 case MACRO_OFFSET: {
2750 if (F.LocalNumMacros != 0) {
2751 Error("duplicate MACRO_OFFSET record in AST file");
2752 return Failure;
2753 }
2754 F.MacroOffsets = (const uint32_t *)BlobStart;
2755 F.LocalNumMacros = Record[0];
2756 unsigned LocalBaseMacroID = Record[1];
2757 F.BaseMacroID = getTotalNumMacros();
2758
2759 if (F.LocalNumMacros > 0) {
2760 // Introduce the global -> local mapping for macros within this module.
2761 GlobalMacroMap.insert(std::make_pair(getTotalNumMacros() + 1, &F));
2762
2763 // Introduce the local -> global mapping for macros within this module.
2764 F.MacroRemap.insertOrReplace(
2765 std::make_pair(LocalBaseMacroID,
2766 F.BaseMacroID - LocalBaseMacroID));
2767
2768 MacrosLoaded.resize(MacrosLoaded.size() + F.LocalNumMacros);
2769 }
2770 break;
2771 }
2772
2773 case MACRO_UPDATES: {
2774 for (unsigned I = 0, N = Record.size(); I != N; /* in loop */) {
2775 MacroID ID = getGlobalMacroID(F, Record[I++]);
2776 if (I == N)
2777 break;
2778
Douglas Gregor54c8a402012-10-12 00:16:50 +00002779 SourceLocation UndefLoc = ReadSourceLocation(F, Record, I);
2780 SubmoduleID SubmoduleID = getGlobalSubmoduleID(F, Record[I++]);;
2781 MacroUpdate Update;
2782 Update.UndefLoc = UndefLoc;
2783 MacroUpdates[ID].push_back(std::make_pair(SubmoduleID, Update));
Douglas Gregora8235d62012-10-09 23:05:51 +00002784 }
2785 break;
2786 }
Douglas Gregorafaf3082009-04-11 00:14:32 +00002787 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00002788 }
Sebastian Redl3c7f4132010-08-18 23:57:06 +00002789 Error("premature end of bitstream in AST file");
Douglas Gregor0a0428e2009-04-10 20:39:37 +00002790 return Failure;
Douglas Gregor2cf26342009-04-09 22:27:44 +00002791}
2792
Douglas Gregorecc2c092011-12-01 22:20:10 +00002793void ASTReader::makeNamesVisible(const HiddenNames &Names) {
Douglas Gregor13292642011-12-02 15:45:10 +00002794 for (unsigned I = 0, N = Names.size(); I != N; ++I) {
Douglas Gregor54c8a402012-10-12 00:16:50 +00002795 switch (Names[I].getKind()) {
2796 case HiddenName::Declaration:
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00002797 Names[I].getDecl()->Hidden = false;
Douglas Gregor54c8a402012-10-12 00:16:50 +00002798 break;
2799
2800 case HiddenName::MacroVisibility: {
2801 std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
2802 Macro.second->setHidden(!Macro.second->isPublic());
2803 if (Macro.second->isDefined()) {
2804 PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
2805 }
2806 break;
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00002807 }
2808
Douglas Gregor54c8a402012-10-12 00:16:50 +00002809 case HiddenName::MacroUndef: {
2810 std::pair<IdentifierInfo *, MacroInfo *> Macro = Names[I].getMacro();
2811 if (Macro.second->isDefined()) {
2812 Macro.second->setUndefLoc(Names[I].getMacroUndefLoc());
2813 if (PPMutationListener *Listener = PP.getPPMutationListener())
2814 Listener->UndefinedMacro(Macro.second);
2815 PP.makeLoadedMacroInfoVisible(Macro.first, Macro.second);
2816 }
2817 break;
2818 }
Douglas Gregor1d4c1132011-12-20 22:06:13 +00002819 }
Douglas Gregor13292642011-12-02 15:45:10 +00002820 }
Douglas Gregorecc2c092011-12-01 22:20:10 +00002821}
2822
Douglas Gregor5e356932011-12-01 17:11:21 +00002823void ASTReader::makeModuleVisible(Module *Mod,
2824 Module::NameVisibilityKind NameVisibility) {
2825 llvm::SmallPtrSet<Module *, 4> Visited;
2826 llvm::SmallVector<Module *, 4> Stack;
2827 Stack.push_back(Mod);
2828 while (!Stack.empty()) {
2829 Mod = Stack.back();
2830 Stack.pop_back();
2831
2832 if (NameVisibility <= Mod->NameVisibility) {
2833 // This module already has this level of visibility (or greater), so
2834 // there is nothing more to do.
2835 continue;
2836 }
2837
Douglas Gregor51f564f2011-12-31 04:05:44 +00002838 if (!Mod->isAvailable()) {
2839 // Modules that aren't available cannot be made visible.
2840 continue;
2841 }
2842
Douglas Gregor5e356932011-12-01 17:11:21 +00002843 // Update the module's name visibility.
2844 Mod->NameVisibility = NameVisibility;
2845
Douglas Gregorecc2c092011-12-01 22:20:10 +00002846 // If we've already deserialized any names from this module,
Douglas Gregor5e356932011-12-01 17:11:21 +00002847 // mark them as visible.
Douglas Gregorecc2c092011-12-01 22:20:10 +00002848 HiddenNamesMapType::iterator Hidden = HiddenNamesMap.find(Mod);
2849 if (Hidden != HiddenNamesMap.end()) {
2850 makeNamesVisible(Hidden->second);
2851 HiddenNamesMap.erase(Hidden);
2852 }
Douglas Gregor5e356932011-12-01 17:11:21 +00002853
2854 // Push any non-explicit submodules onto the stack to be marked as
2855 // visible.
Douglas Gregorb7a78192012-01-04 23:32:19 +00002856 for (Module::submodule_iterator Sub = Mod->submodule_begin(),
2857 SubEnd = Mod->submodule_end();
Douglas Gregor5e356932011-12-01 17:11:21 +00002858 Sub != SubEnd; ++Sub) {
Douglas Gregorb7a78192012-01-04 23:32:19 +00002859 if (!(*Sub)->IsExplicit && Visited.insert(*Sub))
2860 Stack.push_back(*Sub);
Douglas Gregor5e356932011-12-01 17:11:21 +00002861 }
Douglas Gregor07165b92011-12-02 19:11:09 +00002862
2863 // Push any exported modules onto the stack to be marked as visible.
Douglas Gregor0adaa882011-12-05 17:28:06 +00002864 bool AnyWildcard = false;
2865 bool UnrestrictedWildcard = false;
2866 llvm::SmallVector<Module *, 4> WildcardRestrictions;
Douglas Gregor07165b92011-12-02 19:11:09 +00002867 for (unsigned I = 0, N = Mod->Exports.size(); I != N; ++I) {
2868 Module *Exported = Mod->Exports[I].getPointer();
Douglas Gregor0adaa882011-12-05 17:28:06 +00002869 if (!Mod->Exports[I].getInt()) {
2870 // Export a named module directly; no wildcards involved.
2871 if (Visited.insert(Exported))
Douglas Gregor07165b92011-12-02 19:11:09 +00002872 Stack.push_back(Exported);
Douglas Gregor0adaa882011-12-05 17:28:06 +00002873
2874 continue;
Douglas Gregor07165b92011-12-02 19:11:09 +00002875 }
Douglas Gregor0adaa882011-12-05 17:28:06 +00002876
2877 // Wildcard export: export all of the imported modules that match
2878 // the given pattern.
2879 AnyWildcard = true;
2880 if (UnrestrictedWildcard)
2881 continue;
2882
2883 if (Module *Restriction = Mod->Exports[I].getPointer())
2884 WildcardRestrictions.push_back(Restriction);
2885 else {
2886 WildcardRestrictions.clear();
2887 UnrestrictedWildcard = true;
2888 }
2889 }
2890
2891 // If there were any wildcards, push any imported modules that were
2892 // re-exported by the wildcard restriction.
2893 if (!AnyWildcard)
2894 continue;
2895
2896 for (unsigned I = 0, N = Mod->Imports.size(); I != N; ++I) {
2897 Module *Imported = Mod->Imports[I];
Benjamin Kramerd48bcb22012-08-22 15:37:55 +00002898 if (!Visited.insert(Imported))
Douglas Gregor0adaa882011-12-05 17:28:06 +00002899 continue;
2900
2901 bool Acceptable = UnrestrictedWildcard;
2902 if (!Acceptable) {
2903 // Check whether this module meets one of the restrictions.
2904 for (unsigned R = 0, NR = WildcardRestrictions.size(); R != NR; ++R) {
2905 Module *Restriction = WildcardRestrictions[R];
2906 if (Imported == Restriction || Imported->isSubModuleOf(Restriction)) {
2907 Acceptable = true;
2908 break;
2909 }
2910 }
2911 }
2912
2913 if (!Acceptable)
2914 continue;
2915
Douglas Gregor0adaa882011-12-05 17:28:06 +00002916 Stack.push_back(Imported);
Douglas Gregor07165b92011-12-02 19:11:09 +00002917 }
Douglas Gregor5e356932011-12-01 17:11:21 +00002918 }
2919}
2920
Sebastian Redl1d9f1fe2010-10-05 16:15:19 +00002921ASTReader::ASTReadResult ASTReader::ReadAST(const std::string &FileName,
Douglas Gregor72a9ae12011-07-22 16:00:58 +00002922 ModuleKind Type) {
Douglas Gregor057df202012-01-18 20:56:22 +00002923 // Bump the generation number.
Douglas Gregorcff9f262012-01-27 01:47:08 +00002924 unsigned PreviousGeneration = CurrentGeneration++;
Douglas Gregor1d9d9892012-10-18 05:31:06 +00002925
2926 // Load the core of the AST files.
2927 llvm::SmallVector<ModuleFile *, 4> Loaded;
2928 switch(ReadASTCore(FileName, Type, /*ImportedBy=*/0, Loaded)) {
Sebastian Redlcdf3b832010-07-16 20:41:52 +00002929 case Failure: return Failure;
2930 case IgnorePCH: return IgnorePCH;
2931 case Success: break;
2932 }
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00002933
2934 // Here comes stuff that we only do once the entire chain is loaded.
Douglas Gregor057df202012-01-18 20:56:22 +00002935
Douglas Gregor1d9d9892012-10-18 05:31:06 +00002936 // Load the AST blocks of all of the modules that we loaded.
2937 for (llvm::SmallVectorImpl<ModuleFile *>::iterator M = Loaded.begin(),
2938 MEnd = Loaded.end();
2939 M != MEnd; ++M) {
2940 ModuleFile &F = **M;
2941
2942 // Read the AST block.
2943 switch(ReadASTBlock(F)) {
2944 case Failure: return Failure;
2945 case IgnorePCH: return IgnorePCH;
2946 case Success: break;
2947 }
2948
2949 // Once read, set the ModuleFile bit base offset and update the size in
2950 // bits of all files we've seen.
2951 F.GlobalBitOffset = TotalModulesSizeInBits;
2952 TotalModulesSizeInBits += F.SizeInBits;
2953 GlobalBitOffsetsMap.insert(std::make_pair(F.GlobalBitOffset, &F));
2954
Douglas Gregor1d9d9892012-10-18 05:31:06 +00002955 // Preload SLocEntries.
2956 for (unsigned I = 0, N = F.PreloadSLocEntries.size(); I != N; ++I) {
2957 int Index = int(F.PreloadSLocEntries[I] - 1) + F.SLocEntryBaseID;
2958 // Load it through the SourceManager and don't call ReadSLocEntryRecord()
2959 // directly because the entry may have already been loaded in which case
2960 // calling ReadSLocEntryRecord() directly would trigger an assertion in
2961 // SourceManager.
2962 SourceMgr.getLoadedSLocEntryByID(Index);
2963 }
2964 }
2965
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00002966 // Check the predefines buffers.
Douglas Gregor6236a292011-12-02 21:56:05 +00002967 if (!DisableValidation && Type == MK_PCH &&
Argyrios Kyrtzidis26d43cd2011-09-12 18:09:38 +00002968 // FIXME: CheckPredefinesBuffers also sets the SuggestedPredefines;
2969 // if DisableValidation is true, defines that were set on command-line
2970 // but not in the PCH file will not be added to SuggestedPredefines.
2971 CheckPredefinesBuffers())
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00002972 return IgnorePCH;
2973
Douglas Gregoreee242f2011-10-27 09:33:13 +00002974 // Mark all of the identifiers in the identifier table as being out of date,
2975 // so that various accessors know to check the loaded modules when the
2976 // identifier is used.
Douglas Gregor712f2fc2011-09-09 22:02:16 +00002977 for (IdentifierTable::iterator Id = PP.getIdentifierTable().begin(),
2978 IdEnd = PP.getIdentifierTable().end();
2979 Id != IdEnd; ++Id)
Douglas Gregoreee242f2011-10-27 09:33:13 +00002980 Id->second->setOutOfDate(true);
Douglas Gregor057df202012-01-18 20:56:22 +00002981
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002982 // Resolve any unresolved module exports.
Douglas Gregor55988682011-12-05 16:33:54 +00002983 for (unsigned I = 0, N = UnresolvedModuleImportExports.size(); I != N; ++I) {
2984 UnresolvedModuleImportExport &Unresolved = UnresolvedModuleImportExports[I];
2985 SubmoduleID GlobalID = getGlobalSubmoduleID(*Unresolved.File,Unresolved.ID);
Douglas Gregor0adaa882011-12-05 17:28:06 +00002986 Module *ResolvedMod = getSubmodule(GlobalID);
2987
2988 if (Unresolved.IsImport) {
2989 if (ResolvedMod)
Douglas Gregor55988682011-12-05 16:33:54 +00002990 Unresolved.Mod->Imports.push_back(ResolvedMod);
Douglas Gregor0adaa882011-12-05 17:28:06 +00002991 continue;
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002992 }
Douglas Gregor0adaa882011-12-05 17:28:06 +00002993
2994 if (ResolvedMod || Unresolved.IsWildcard)
2995 Unresolved.Mod->Exports.push_back(
2996 Module::ExportDecl(ResolvedMod, Unresolved.IsWildcard));
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002997 }
Douglas Gregor55988682011-12-05 16:33:54 +00002998 UnresolvedModuleImportExports.clear();
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00002999
Douglas Gregor35942772011-09-09 21:34:22 +00003000 InitializeContext();
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00003001
Argyrios Kyrtzidis7b903402010-10-24 17:26:36 +00003002 if (DeserializationListener)
3003 DeserializationListener->ReaderInitialized(this);
3004
Douglas Gregor11407b82012-10-18 21:18:25 +00003005 ModuleFile &PrimaryModule = ModuleMgr.getPrimaryModule();
3006 if (!PrimaryModule.OriginalSourceFileID.isInvalid()) {
3007 PrimaryModule.OriginalSourceFileID
3008 = FileID::get(PrimaryModule.SLocEntryBaseID
3009 + PrimaryModule.OriginalSourceFileID.getOpaqueValue() - 1);
Argyrios Kyrtzidisb8c879a2012-01-05 21:36:25 +00003010
Douglas Gregor11407b82012-10-18 21:18:25 +00003011 // If this AST file is a precompiled preamble, then set the
3012 // preamble file ID of the source manager to the file source file
3013 // from which the preamble was built.
Argyrios Kyrtzidisb8c879a2012-01-05 21:36:25 +00003014 if (Type == MK_Preamble) {
Douglas Gregor11407b82012-10-18 21:18:25 +00003015 SourceMgr.setPreambleFileID(PrimaryModule.OriginalSourceFileID);
Argyrios Kyrtzidisb8c879a2012-01-05 21:36:25 +00003016 } else if (Type == MK_MainFile) {
Douglas Gregor11407b82012-10-18 21:18:25 +00003017 SourceMgr.setMainFileID(PrimaryModule.OriginalSourceFileID);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00003018 }
Douglas Gregor414cb642010-11-30 05:23:00 +00003019 }
3020
Douglas Gregorcff9f262012-01-27 01:47:08 +00003021 // For any Objective-C class definitions we have already loaded, make sure
3022 // that we load any additional categories.
3023 for (unsigned I = 0, N = ObjCClassesLoaded.size(); I != N; ++I) {
3024 loadObjCCategories(ObjCClassesLoaded[I]->getGlobalID(),
3025 ObjCClassesLoaded[I],
3026 PreviousGeneration);
3027 }
3028
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00003029 return Success;
3030}
3031
Chris Lattner5f9e2722011-07-23 10:55:15 +00003032ASTReader::ASTReadResult ASTReader::ReadASTCore(StringRef FileName,
Douglas Gregor10bc00f2011-08-18 04:12:04 +00003033 ModuleKind Type,
Douglas Gregor1d9d9892012-10-18 05:31:06 +00003034 ModuleFile *ImportedBy,
3035 llvm::SmallVectorImpl<ModuleFile *> &Loaded) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003036 ModuleFile *M;
Douglas Gregorfac4ece2011-08-19 02:29:29 +00003037 bool NewModule;
3038 std::string ErrorStr;
3039 llvm::tie(M, NewModule) = ModuleMgr.addModule(FileName, Type, ImportedBy,
Douglas Gregor057df202012-01-18 20:56:22 +00003040 CurrentGeneration, ErrorStr);
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00003041
Douglas Gregorfac4ece2011-08-19 02:29:29 +00003042 if (!M) {
3043 // We couldn't load the module.
3044 std::string Msg = "Unable to load module \"" + FileName.str() + "\": "
3045 + ErrorStr;
3046 Error(Msg);
3047 return Failure;
3048 }
3049
3050 if (!NewModule) {
3051 // We've already loaded this module.
3052 return Success;
3053 }
3054
3055 // FIXME: This seems rather a hack. Should CurrentDir be part of the
3056 // module?
Argyrios Kyrtzidis8e3df4d2011-02-15 17:54:22 +00003057 if (FileName != "-") {
3058 CurrentDir = llvm::sys::path::parent_path(FileName);
3059 if (CurrentDir.empty()) CurrentDir = ".";
3060 }
3061
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003062 ModuleFile &F = *M;
Sebastian Redl9137a522010-07-16 17:50:48 +00003063 llvm::BitstreamCursor &Stream = F.Stream;
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00003064 Stream.init(F.StreamFile);
Sebastian Redl04e6fd42010-07-21 20:07:32 +00003065 F.SizeInBits = F.Buffer->getBufferSize() * 8;
Douglas Gregor8f1231b2011-07-22 06:10:01 +00003066
Sebastian Redlfbd4bf12010-07-17 00:12:06 +00003067 // Sniff for the signature.
3068 if (Stream.Read(8) != 'C' ||
3069 Stream.Read(8) != 'P' ||
3070 Stream.Read(8) != 'C' ||
3071 Stream.Read(8) != 'H') {
3072 Diag(diag::err_not_a_pch_file) << FileName;
3073 return Failure;
3074 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00003075
Douglas Gregor2cf26342009-04-09 22:27:44 +00003076 while (!Stream.AtEndOfStream()) {
3077 unsigned Code = Stream.ReadCode();
Mike Stump1eb44332009-09-09 15:08:12 +00003078
Douglas Gregore1d918e2009-04-10 23:10:45 +00003079 if (Code != llvm::bitc::ENTER_SUBBLOCK) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003080 Error("invalid record at top-level of AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00003081 return Failure;
3082 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00003083
3084 unsigned BlockID = Stream.ReadSubBlockID();
Douglas Gregor668c1a42009-04-21 22:25:48 +00003085
Douglas Gregor7ae467f2012-10-18 18:27:37 +00003086 // We only know the control subblock ID.
Douglas Gregor2cf26342009-04-09 22:27:44 +00003087 switch (BlockID) {
3088 case llvm::bitc::BLOCKINFO_BLOCK_ID:
Douglas Gregore1d918e2009-04-10 23:10:45 +00003089 if (Stream.ReadBlockInfoBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003090 Error("malformed BlockInfoBlock in AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00003091 return Failure;
3092 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00003093 break;
Douglas Gregor1d9d9892012-10-18 05:31:06 +00003094 case CONTROL_BLOCK_ID:
3095 switch (ReadControlBlock(F, Loaded)) {
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003096 case Success:
3097 break;
3098
3099 case Failure:
Douglas Gregore1d918e2009-04-10 23:10:45 +00003100 return Failure;
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003101
3102 case IgnorePCH:
Douglas Gregor2bec0412009-04-10 21:16:55 +00003103 // FIXME: We could consider reading through to the end of this
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003104 // AST block, skipping subblocks, to see if there are other
3105 // AST blocks elsewhere.
Douglas Gregore1d918e2009-04-10 23:10:45 +00003106 return IgnorePCH;
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003107 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00003108 break;
Douglas Gregor1d9d9892012-10-18 05:31:06 +00003109 case AST_BLOCK_ID:
3110 // Record that we've loaded this module.
3111 Loaded.push_back(M);
3112 return Success;
3113
Douglas Gregor2cf26342009-04-09 22:27:44 +00003114 default:
Douglas Gregore1d918e2009-04-10 23:10:45 +00003115 if (Stream.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003116 Error("malformed block record in AST file");
Douglas Gregore1d918e2009-04-10 23:10:45 +00003117 return Failure;
3118 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00003119 break;
3120 }
Mike Stump1eb44332009-09-09 15:08:12 +00003121 }
Douglas Gregor8f1231b2011-07-22 06:10:01 +00003122
Sebastian Redlcdf3b832010-07-16 20:41:52 +00003123 return Success;
3124}
3125
Douglas Gregor712f2fc2011-09-09 22:02:16 +00003126void ASTReader::InitializeContext() {
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00003127 // If there's a listener, notify them that we "read" the translation unit.
3128 if (DeserializationListener)
Douglas Gregor35942772011-09-09 21:34:22 +00003129 DeserializationListener->DeclRead(PREDEF_DECL_TRANSLATION_UNIT_ID,
3130 Context.getTranslationUnitDecl());
Douglas Gregor3747ee72010-10-01 01:18:02 +00003131
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00003132 // Make sure we load the declaration update records for the translation unit,
3133 // if there are any.
Douglas Gregor35942772011-09-09 21:34:22 +00003134 loadDeclUpdateRecords(PREDEF_DECL_TRANSLATION_UNIT_ID,
3135 Context.getTranslationUnitDecl());
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00003136
Douglas Gregor5f957282011-08-11 22:18:49 +00003137 // FIXME: Find a better way to deal with collisions between these
3138 // built-in types. Right now, we just ignore the problem.
3139
3140 // Load the special types.
Douglas Gregora6ea10e2012-01-17 18:09:05 +00003141 if (SpecialTypes.size() >= NumSpecialTypeIDs) {
Douglas Gregor02a5e872011-09-10 00:30:18 +00003142 if (unsigned String = SpecialTypes[SPECIAL_TYPE_CF_CONSTANT_STRING]) {
3143 if (!Context.CFConstantStringTypeDecl)
3144 Context.setCFConstantStringType(GetType(String));
3145 }
3146
3147 if (unsigned File = SpecialTypes[SPECIAL_TYPE_FILE]) {
3148 QualType FileType = GetType(File);
3149 if (FileType.isNull()) {
3150 Error("FILE type is NULL");
3151 return;
3152 }
3153
3154 if (!Context.FILEDecl) {
3155 if (const TypedefType *Typedef = FileType->getAs<TypedefType>())
3156 Context.setFILEDecl(Typedef->getDecl());
3157 else {
3158 const TagType *Tag = FileType->getAs<TagType>();
3159 if (!Tag) {
3160 Error("Invalid FILE type in AST file");
3161 return;
3162 }
3163 Context.setFILEDecl(Tag->getDecl());
Jonathan D. Turnerde91db52011-08-05 23:07:10 +00003164 }
Jonathan D. Turnerde91db52011-08-05 23:07:10 +00003165 }
Douglas Gregorc29f77b2009-07-07 16:35:42 +00003166 }
Douglas Gregor5f957282011-08-11 22:18:49 +00003167
Douglas Gregor72cd7a02011-11-11 19:13:12 +00003168 if (unsigned Jmp_buf = SpecialTypes[SPECIAL_TYPE_JMP_BUF]) {
Douglas Gregor02a5e872011-09-10 00:30:18 +00003169 QualType Jmp_bufType = GetType(Jmp_buf);
3170 if (Jmp_bufType.isNull()) {
3171 Error("jmp_buf type is NULL");
3172 return;
3173 }
3174
3175 if (!Context.jmp_bufDecl) {
3176 if (const TypedefType *Typedef = Jmp_bufType->getAs<TypedefType>())
3177 Context.setjmp_bufDecl(Typedef->getDecl());
3178 else {
3179 const TagType *Tag = Jmp_bufType->getAs<TagType>();
3180 if (!Tag) {
3181 Error("Invalid jmp_buf type in AST file");
3182 return;
3183 }
3184 Context.setjmp_bufDecl(Tag->getDecl());
Jonathan D. Turnerde91db52011-08-05 23:07:10 +00003185 }
Jonathan D. Turnerde91db52011-08-05 23:07:10 +00003186 }
Mike Stump782fa302009-07-28 02:25:19 +00003187 }
Douglas Gregor02a5e872011-09-10 00:30:18 +00003188
Douglas Gregor72cd7a02011-11-11 19:13:12 +00003189 if (unsigned Sigjmp_buf = SpecialTypes[SPECIAL_TYPE_SIGJMP_BUF]) {
Douglas Gregor02a5e872011-09-10 00:30:18 +00003190 QualType Sigjmp_bufType = GetType(Sigjmp_buf);
3191 if (Sigjmp_bufType.isNull()) {
3192 Error("sigjmp_buf type is NULL");
3193 return;
3194 }
3195
3196 if (!Context.sigjmp_bufDecl) {
3197 if (const TypedefType *Typedef = Sigjmp_bufType->getAs<TypedefType>())
3198 Context.setsigjmp_bufDecl(Typedef->getDecl());
3199 else {
3200 const TagType *Tag = Sigjmp_bufType->getAs<TagType>();
3201 assert(Tag && "Invalid sigjmp_buf type in AST file");
3202 Context.setsigjmp_bufDecl(Tag->getDecl());
3203 }
3204 }
3205 }
3206
3207 if (unsigned ObjCIdRedef
3208 = SpecialTypes[SPECIAL_TYPE_OBJC_ID_REDEFINITION]) {
3209 if (Context.ObjCIdRedefinitionType.isNull())
3210 Context.ObjCIdRedefinitionType = GetType(ObjCIdRedef);
3211 }
3212
3213 if (unsigned ObjCClassRedef
3214 = SpecialTypes[SPECIAL_TYPE_OBJC_CLASS_REDEFINITION]) {
3215 if (Context.ObjCClassRedefinitionType.isNull())
3216 Context.ObjCClassRedefinitionType = GetType(ObjCClassRedef);
3217 }
3218
3219 if (unsigned ObjCSelRedef
3220 = SpecialTypes[SPECIAL_TYPE_OBJC_SEL_REDEFINITION]) {
3221 if (Context.ObjCSelRedefinitionType.isNull())
3222 Context.ObjCSelRedefinitionType = GetType(ObjCSelRedef);
3223 }
Rafael Espindolae2d4f4e2011-11-13 21:51:09 +00003224
3225 if (unsigned Ucontext_t = SpecialTypes[SPECIAL_TYPE_UCONTEXT_T]) {
3226 QualType Ucontext_tType = GetType(Ucontext_t);
3227 if (Ucontext_tType.isNull()) {
3228 Error("ucontext_t type is NULL");
3229 return;
3230 }
3231
3232 if (!Context.ucontext_tDecl) {
3233 if (const TypedefType *Typedef = Ucontext_tType->getAs<TypedefType>())
3234 Context.setucontext_tDecl(Typedef->getDecl());
3235 else {
3236 const TagType *Tag = Ucontext_tType->getAs<TagType>();
3237 assert(Tag && "Invalid ucontext_t type in AST file");
3238 Context.setucontext_tDecl(Tag->getDecl());
3239 }
3240 }
3241 }
Douglas Gregor5f957282011-08-11 22:18:49 +00003242 }
3243
Douglas Gregor35942772011-09-09 21:34:22 +00003244 ReadPragmaDiagnosticMappings(Context.getDiagnostics());
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00003245
3246 // If there were any CUDA special declarations, deserialize them.
3247 if (!CUDASpecialDeclRefs.empty()) {
3248 assert(CUDASpecialDeclRefs.size() == 1 && "More decl refs than expected!");
Douglas Gregor35942772011-09-09 21:34:22 +00003249 Context.setcudaConfigureCallDecl(
Peter Collingbourne14b6ba72011-02-09 21:04:32 +00003250 cast<FunctionDecl>(GetDecl(CUDASpecialDeclRefs[0])));
3251 }
Douglas Gregorf6137e42011-12-03 00:59:55 +00003252
3253 // Re-export any modules that were imported by a non-module AST file.
3254 for (unsigned I = 0, N = ImportedModules.size(); I != N; ++I) {
3255 if (Module *Imported = getSubmodule(ImportedModules[I]))
3256 makeModuleVisible(Imported, Module::AllVisible);
3257 }
3258 ImportedModules.clear();
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +00003259}
3260
Douglas Gregorecc2c092011-12-01 22:20:10 +00003261void ASTReader::finalizeForWriting() {
3262 for (HiddenNamesMapType::iterator Hidden = HiddenNamesMap.begin(),
3263 HiddenEnd = HiddenNamesMap.end();
3264 Hidden != HiddenEnd; ++Hidden) {
3265 makeNamesVisible(Hidden->second);
3266 }
3267 HiddenNamesMap.clear();
3268}
3269
Douglas Gregorb64c1932009-05-12 01:31:05 +00003270/// \brief Retrieve the name of the original source file name
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003271/// directly from the AST file, without actually loading the AST
Douglas Gregorb64c1932009-05-12 01:31:05 +00003272/// file.
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003273std::string ASTReader::getOriginalSourceFile(const std::string &ASTFileName,
Argyrios Kyrtzidis389db162010-11-03 22:45:23 +00003274 FileManager &FileMgr,
David Blaikied6471f72011-09-25 23:23:43 +00003275 DiagnosticsEngine &Diags) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003276 // Open the AST file.
Douglas Gregorb64c1932009-05-12 01:31:05 +00003277 std::string ErrStr;
Dylan Noblesmith6f42b622012-02-05 02:12:40 +00003278 OwningPtr<llvm::MemoryBuffer> Buffer;
Chris Lattner39b49bc2010-11-23 08:35:12 +00003279 Buffer.reset(FileMgr.getBufferForFile(ASTFileName, &ErrStr));
Douglas Gregorb64c1932009-05-12 01:31:05 +00003280 if (!Buffer) {
Kaelyn Uhrainda01f622012-06-20 00:36:03 +00003281 Diags.Report(diag::err_fe_unable_to_read_pch_file) << ASTFileName << ErrStr;
Douglas Gregorb64c1932009-05-12 01:31:05 +00003282 return std::string();
3283 }
3284
3285 // Initialize the stream
3286 llvm::BitstreamReader StreamFile;
3287 llvm::BitstreamCursor Stream;
Mike Stump1eb44332009-09-09 15:08:12 +00003288 StreamFile.init((const unsigned char *)Buffer->getBufferStart(),
Douglas Gregorb64c1932009-05-12 01:31:05 +00003289 (const unsigned char *)Buffer->getBufferEnd());
3290 Stream.init(StreamFile);
3291
3292 // Sniff for the signature.
3293 if (Stream.Read(8) != 'C' ||
3294 Stream.Read(8) != 'P' ||
3295 Stream.Read(8) != 'C' ||
3296 Stream.Read(8) != 'H') {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003297 Diags.Report(diag::err_fe_not_a_pch_file) << ASTFileName;
Douglas Gregorb64c1932009-05-12 01:31:05 +00003298 return std::string();
3299 }
3300
3301 RecordData Record;
3302 while (!Stream.AtEndOfStream()) {
3303 unsigned Code = Stream.ReadCode();
Mike Stump1eb44332009-09-09 15:08:12 +00003304
Douglas Gregorb64c1932009-05-12 01:31:05 +00003305 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
3306 unsigned BlockID = Stream.ReadSubBlockID();
Mike Stump1eb44332009-09-09 15:08:12 +00003307
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003308 // We only know the AST subblock ID.
Douglas Gregorb64c1932009-05-12 01:31:05 +00003309 switch (BlockID) {
Douglas Gregor1d9d9892012-10-18 05:31:06 +00003310 case CONTROL_BLOCK_ID:
3311 if (Stream.EnterSubBlock(CONTROL_BLOCK_ID)) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003312 Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
Douglas Gregorb64c1932009-05-12 01:31:05 +00003313 return std::string();
3314 }
3315 break;
Mike Stump1eb44332009-09-09 15:08:12 +00003316
Douglas Gregorb64c1932009-05-12 01:31:05 +00003317 default:
3318 if (Stream.SkipBlock()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003319 Diags.Report(diag::err_fe_pch_malformed_block) << ASTFileName;
Douglas Gregorb64c1932009-05-12 01:31:05 +00003320 return std::string();
3321 }
3322 break;
3323 }
3324 continue;
3325 }
3326
3327 if (Code == llvm::bitc::END_BLOCK) {
3328 if (Stream.ReadBlockEnd()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003329 Diags.Report(diag::err_fe_pch_error_at_end_block) << ASTFileName;
Douglas Gregorb64c1932009-05-12 01:31:05 +00003330 return std::string();
3331 }
3332 continue;
3333 }
3334
3335 if (Code == llvm::bitc::DEFINE_ABBREV) {
3336 Stream.ReadAbbrevRecord();
3337 continue;
3338 }
3339
3340 Record.clear();
3341 const char *BlobStart = 0;
3342 unsigned BlobLen = 0;
Douglas Gregor39c497b2012-10-18 18:36:53 +00003343 if (Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen) == ORIGINAL_FILE)
Douglas Gregorb64c1932009-05-12 01:31:05 +00003344 return std::string(BlobStart, BlobLen);
Mike Stump1eb44332009-09-09 15:08:12 +00003345 }
Douglas Gregorb64c1932009-05-12 01:31:05 +00003346
3347 return std::string();
3348}
3349
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003350ASTReader::ASTReadResult ASTReader::ReadSubmoduleBlock(ModuleFile &F) {
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003351 // Enter the submodule block.
3352 if (F.Stream.EnterSubBlock(SUBMODULE_BLOCK_ID)) {
3353 Error("malformed submodule block record in AST file");
3354 return Failure;
3355 }
3356
3357 ModuleMap &ModMap = PP.getHeaderSearchInfo().getModuleMap();
Douglas Gregor26ced122011-12-01 00:59:36 +00003358 bool First = true;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003359 Module *CurrentModule = 0;
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003360 RecordData Record;
3361 while (true) {
3362 unsigned Code = F.Stream.ReadCode();
3363 if (Code == llvm::bitc::END_BLOCK) {
3364 if (F.Stream.ReadBlockEnd()) {
3365 Error("error at end of submodule block in AST file");
3366 return Failure;
3367 }
3368 return Success;
3369 }
3370
3371 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
3372 // No known subblocks, always skip them.
3373 F.Stream.ReadSubBlockID();
3374 if (F.Stream.SkipBlock()) {
3375 Error("malformed block record in AST file");
3376 return Failure;
3377 }
3378 continue;
3379 }
3380
3381 if (Code == llvm::bitc::DEFINE_ABBREV) {
3382 F.Stream.ReadAbbrevRecord();
3383 continue;
3384 }
3385
3386 // Read a record.
3387 const char *BlobStart;
3388 unsigned BlobLen;
3389 Record.clear();
3390 switch (F.Stream.ReadRecord(Code, Record, &BlobStart, &BlobLen)) {
3391 default: // Default behavior: ignore.
3392 break;
3393
3394 case SUBMODULE_DEFINITION: {
Douglas Gregor26ced122011-12-01 00:59:36 +00003395 if (First) {
3396 Error("missing submodule metadata record at beginning of block");
3397 return Failure;
3398 }
3399
Douglas Gregore209e502011-12-06 01:10:29 +00003400 if (Record.size() < 7) {
Douglas Gregor1e123682011-12-05 22:27:44 +00003401 Error("malformed module definition");
3402 return Failure;
3403 }
3404
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003405 StringRef Name(BlobStart, BlobLen);
Douglas Gregore209e502011-12-06 01:10:29 +00003406 SubmoduleID GlobalID = getGlobalSubmoduleID(F, Record[0]);
3407 SubmoduleID Parent = getGlobalSubmoduleID(F, Record[1]);
3408 bool IsFramework = Record[2];
3409 bool IsExplicit = Record[3];
Douglas Gregora1f1fad2012-01-27 19:52:33 +00003410 bool IsSystem = Record[4];
3411 bool InferSubmodules = Record[5];
3412 bool InferExplicitSubmodules = Record[6];
3413 bool InferExportWildcard = Record[7];
Douglas Gregor1e123682011-12-05 22:27:44 +00003414
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003415 Module *ParentModule = 0;
Douglas Gregor26ced122011-12-01 00:59:36 +00003416 if (Parent)
3417 ParentModule = getSubmodule(Parent);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003418
3419 // Retrieve this (sub)module from the module map, creating it if
3420 // necessary.
3421 CurrentModule = ModMap.findOrCreateModule(Name, ParentModule,
3422 IsFramework,
3423 IsExplicit).first;
Douglas Gregore209e502011-12-06 01:10:29 +00003424 SubmoduleID GlobalIndex = GlobalID - NUM_PREDEF_SUBMODULE_IDS;
3425 if (GlobalIndex >= SubmodulesLoaded.size() ||
3426 SubmodulesLoaded[GlobalIndex]) {
Douglas Gregor26ced122011-12-01 00:59:36 +00003427 Error("too many submodules");
3428 return Failure;
3429 }
Douglas Gregora015cab2011-12-02 17:30:13 +00003430
Argyrios Kyrtzidisd64c26f2012-10-03 01:58:42 +00003431 CurrentModule->setASTFile(F.File);
Douglas Gregor305dc3e2011-12-20 00:28:52 +00003432 CurrentModule->IsFromModuleFile = true;
Douglas Gregora1f1fad2012-01-27 19:52:33 +00003433 CurrentModule->IsSystem = IsSystem || CurrentModule->IsSystem;
Douglas Gregor1e123682011-12-05 22:27:44 +00003434 CurrentModule->InferSubmodules = InferSubmodules;
3435 CurrentModule->InferExplicitSubmodules = InferExplicitSubmodules;
3436 CurrentModule->InferExportWildcard = InferExportWildcard;
Douglas Gregora015cab2011-12-02 17:30:13 +00003437 if (DeserializationListener)
Douglas Gregore209e502011-12-06 01:10:29 +00003438 DeserializationListener->ModuleRead(GlobalID, CurrentModule);
Douglas Gregora015cab2011-12-02 17:30:13 +00003439
Douglas Gregore209e502011-12-06 01:10:29 +00003440 SubmodulesLoaded[GlobalIndex] = CurrentModule;
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003441 break;
3442 }
3443
Douglas Gregor77d029f2011-12-08 19:11:24 +00003444 case SUBMODULE_UMBRELLA_HEADER: {
Douglas Gregor26ced122011-12-01 00:59:36 +00003445 if (First) {
3446 Error("missing submodule metadata record at beginning of block");
3447 return Failure;
3448 }
3449
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003450 if (!CurrentModule)
3451 break;
3452
3453 StringRef FileName(BlobStart, BlobLen);
3454 if (const FileEntry *Umbrella = PP.getFileManager().getFile(FileName)) {
Douglas Gregor10694ce2011-12-08 17:39:04 +00003455 if (!CurrentModule->getUmbrellaHeader())
Douglas Gregore209e502011-12-06 01:10:29 +00003456 ModMap.setUmbrellaHeader(CurrentModule, Umbrella);
Douglas Gregor10694ce2011-12-08 17:39:04 +00003457 else if (CurrentModule->getUmbrellaHeader() != Umbrella) {
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003458 Error("mismatched umbrella headers in submodule");
3459 return Failure;
3460 }
3461 }
3462 break;
3463 }
3464
3465 case SUBMODULE_HEADER: {
Douglas Gregor26ced122011-12-01 00:59:36 +00003466 if (First) {
3467 Error("missing submodule metadata record at beginning of block");
3468 return Failure;
3469 }
3470
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003471 if (!CurrentModule)
3472 break;
3473
3474 // FIXME: Be more lazy about this!
3475 StringRef FileName(BlobStart, BlobLen);
3476 if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
3477 if (std::find(CurrentModule->Headers.begin(),
3478 CurrentModule->Headers.end(),
3479 File) == CurrentModule->Headers.end())
Douglas Gregor2b49d1f2012-10-15 06:28:11 +00003480 ModMap.addHeader(CurrentModule, File, false);
3481 }
3482 break;
3483 }
3484
3485 case SUBMODULE_EXCLUDED_HEADER: {
3486 if (First) {
3487 Error("missing submodule metadata record at beginning of block");
3488 return Failure;
3489 }
3490
3491 if (!CurrentModule)
3492 break;
3493
3494 // FIXME: Be more lazy about this!
3495 StringRef FileName(BlobStart, BlobLen);
3496 if (const FileEntry *File = PP.getFileManager().getFile(FileName)) {
3497 if (std::find(CurrentModule->Headers.begin(),
3498 CurrentModule->Headers.end(),
3499 File) == CurrentModule->Headers.end())
3500 ModMap.addHeader(CurrentModule, File, true);
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003501 }
3502 break;
3503 }
Argyrios Kyrtzidisc7782d92012-10-05 00:22:33 +00003504
3505 case SUBMODULE_TOPHEADER: {
3506 if (First) {
3507 Error("missing submodule metadata record at beginning of block");
3508 return Failure;
3509 }
3510
3511 if (!CurrentModule)
3512 break;
3513
3514 // FIXME: Be more lazy about this!
3515 StringRef FileName(BlobStart, BlobLen);
3516 if (const FileEntry *File = PP.getFileManager().getFile(FileName))
3517 CurrentModule->TopHeaders.insert(File);
3518 break;
3519 }
3520
Douglas Gregor77d029f2011-12-08 19:11:24 +00003521 case SUBMODULE_UMBRELLA_DIR: {
3522 if (First) {
3523 Error("missing submodule metadata record at beginning of block");
3524 return Failure;
3525 }
3526
3527 if (!CurrentModule)
3528 break;
3529
3530 StringRef DirName(BlobStart, BlobLen);
3531 if (const DirectoryEntry *Umbrella
3532 = PP.getFileManager().getDirectory(DirName)) {
3533 if (!CurrentModule->getUmbrellaDir())
3534 ModMap.setUmbrellaDir(CurrentModule, Umbrella);
3535 else if (CurrentModule->getUmbrellaDir() != Umbrella) {
3536 Error("mismatched umbrella directories in submodule");
3537 return Failure;
3538 }
3539 }
3540 break;
3541 }
3542
Douglas Gregor26ced122011-12-01 00:59:36 +00003543 case SUBMODULE_METADATA: {
3544 if (!First) {
3545 Error("submodule metadata record not at beginning of block");
3546 return Failure;
3547 }
3548 First = false;
3549
3550 F.BaseSubmoduleID = getTotalNumSubmodules();
Douglas Gregor26ced122011-12-01 00:59:36 +00003551 F.LocalNumSubmodules = Record[0];
3552 unsigned LocalBaseSubmoduleID = Record[1];
3553 if (F.LocalNumSubmodules > 0) {
3554 // Introduce the global -> local mapping for submodules within this
3555 // module.
3556 GlobalSubmoduleMap.insert(std::make_pair(getTotalNumSubmodules()+1,&F));
3557
3558 // Introduce the local -> global mapping for submodules within this
3559 // module.
Douglas Gregoradafc2e2011-12-19 16:14:14 +00003560 F.SubmoduleRemap.insertOrReplace(
Douglas Gregor26ced122011-12-01 00:59:36 +00003561 std::make_pair(LocalBaseSubmoduleID,
3562 F.BaseSubmoduleID - LocalBaseSubmoduleID));
3563
3564 SubmodulesLoaded.resize(SubmodulesLoaded.size() + F.LocalNumSubmodules);
3565 }
3566 break;
3567 }
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00003568
Douglas Gregor55988682011-12-05 16:33:54 +00003569 case SUBMODULE_IMPORTS: {
3570 if (First) {
3571 Error("missing submodule metadata record at beginning of block");
3572 return Failure;
3573 }
3574
3575 if (!CurrentModule)
3576 break;
3577
3578 for (unsigned Idx = 0; Idx != Record.size(); ++Idx) {
3579 UnresolvedModuleImportExport Unresolved;
3580 Unresolved.File = &F;
3581 Unresolved.Mod = CurrentModule;
3582 Unresolved.ID = Record[Idx];
3583 Unresolved.IsImport = true;
3584 Unresolved.IsWildcard = false;
3585 UnresolvedModuleImportExports.push_back(Unresolved);
3586 }
3587 break;
3588 }
3589
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00003590 case SUBMODULE_EXPORTS: {
3591 if (First) {
3592 Error("missing submodule metadata record at beginning of block");
3593 return Failure;
3594 }
3595
3596 if (!CurrentModule)
3597 break;
3598
3599 for (unsigned Idx = 0; Idx + 1 < Record.size(); Idx += 2) {
Douglas Gregor55988682011-12-05 16:33:54 +00003600 UnresolvedModuleImportExport Unresolved;
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00003601 Unresolved.File = &F;
Douglas Gregor55988682011-12-05 16:33:54 +00003602 Unresolved.Mod = CurrentModule;
3603 Unresolved.ID = Record[Idx];
3604 Unresolved.IsImport = false;
3605 Unresolved.IsWildcard = Record[Idx + 1];
3606 UnresolvedModuleImportExports.push_back(Unresolved);
Douglas Gregoraf13bfc2011-12-02 18:58:38 +00003607 }
3608
3609 // Once we've loaded the set of exports, there's no reason to keep
3610 // the parsed, unresolved exports around.
3611 CurrentModule->UnresolvedExports.clear();
3612 break;
3613 }
Douglas Gregor51f564f2011-12-31 04:05:44 +00003614 case SUBMODULE_REQUIRES: {
3615 if (First) {
3616 Error("missing submodule metadata record at beginning of block");
3617 return Failure;
3618 }
3619
3620 if (!CurrentModule)
3621 break;
3622
3623 CurrentModule->addRequirement(StringRef(BlobStart, BlobLen),
David Blaikie4e4d0842012-03-11 07:00:24 +00003624 Context.getLangOpts(),
Douglas Gregordc58aa72012-01-30 06:01:29 +00003625 Context.getTargetInfo());
Douglas Gregor51f564f2011-12-31 04:05:44 +00003626 break;
3627 }
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003628 }
3629 }
Douglas Gregor392ed2b2011-11-30 17:33:56 +00003630}
3631
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003632/// \brief Parse the record that corresponds to a LangOptions data
3633/// structure.
3634///
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003635/// This routine parses the language options from the AST file and then gives
3636/// them to the AST listener if one is set.
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003637///
Sebastian Redl3c7f4132010-08-18 23:57:06 +00003638/// \returns true if the listener deems the file unacceptable, false otherwise.
Argyrios Kyrtzidis62288ed2012-10-10 02:12:47 +00003639bool ASTReader::ParseLanguageOptions(const ModuleFile &M,
3640 const RecordData &Record) {
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +00003641 if (Listener) {
3642 LangOptions LangOpts;
Argyrios Kyrtzidis11e51102009-06-19 00:03:23 +00003643 unsigned Idx = 0;
Douglas Gregor7d5e81b2011-09-13 18:26:39 +00003644#define LANGOPT(Name, Bits, Default, Description) \
3645 LangOpts.Name = Record[Idx++];
3646#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
3647 LangOpts.set##Name(static_cast<LangOptions::Type>(Record[Idx++]));
3648#include "clang/Basic/LangOptions.def"
John McCall260611a2012-06-20 06:18:46 +00003649
3650 ObjCRuntime::Kind runtimeKind = (ObjCRuntime::Kind) Record[Idx++];
3651 VersionTuple runtimeVersion = ReadVersionTuple(Record, Idx);
3652 LangOpts.ObjCRuntime = ObjCRuntime(runtimeKind, runtimeVersion);
Douglas Gregor7d5e81b2011-09-13 18:26:39 +00003653
Douglas Gregorb86b8dc2011-11-15 19:35:01 +00003654 unsigned Length = Record[Idx++];
3655 LangOpts.CurrentModule.assign(Record.begin() + Idx,
3656 Record.begin() + Idx + Length);
Argyrios Kyrtzidis62288ed2012-10-10 02:12:47 +00003657 return Listener->ReadLanguageOptions(M, LangOpts);
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003658 }
Douglas Gregor0a0428e2009-04-10 20:39:37 +00003659
3660 return false;
3661}
3662
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003663std::pair<ModuleFile *, unsigned>
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003664ASTReader::getModulePreprocessedEntity(unsigned GlobalIndex) {
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00003665 GlobalPreprocessedEntityMapType::iterator
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003666 I = GlobalPreprocessedEntityMap.find(GlobalIndex);
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00003667 assert(I != GlobalPreprocessedEntityMap.end() &&
3668 "Corrupted global preprocessed entity map");
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003669 ModuleFile *M = I->second;
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003670 unsigned LocalIndex = GlobalIndex - M->BasePreprocessedEntityID;
3671 return std::make_pair(M, LocalIndex);
3672}
3673
Argyrios Kyrtzidis632dcc92012-10-02 16:10:51 +00003674std::pair<PreprocessingRecord::iterator, PreprocessingRecord::iterator>
3675ASTReader::getModulePreprocessedEntities(ModuleFile &Mod) const {
3676 if (PreprocessingRecord *PPRec = PP.getPreprocessingRecord())
3677 return PPRec->getIteratorsForLoadedRange(Mod.BasePreprocessedEntityID,
3678 Mod.NumPreprocessedEntities);
3679
3680 return std::make_pair(PreprocessingRecord::iterator(),
3681 PreprocessingRecord::iterator());
3682}
3683
Argyrios Kyrtzidis2093e0b2012-10-02 21:09:13 +00003684std::pair<ASTReader::ModuleDeclIterator, ASTReader::ModuleDeclIterator>
3685ASTReader::getModuleFileLevelDecls(ModuleFile &Mod) {
3686 return std::make_pair(ModuleDeclIterator(this, &Mod, Mod.FileSortedDecls),
3687 ModuleDeclIterator(this, &Mod,
3688 Mod.FileSortedDecls + Mod.NumFileSortedDecls));
3689}
3690
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003691PreprocessedEntity *ASTReader::ReadPreprocessedEntity(unsigned Index) {
3692 PreprocessedEntityID PPID = Index+1;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003693 std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
3694 ModuleFile &M = *PPInfo.first;
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003695 unsigned LocalIndex = PPInfo.second;
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003696 const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
Douglas Gregor4800a5c2011-02-08 21:58:10 +00003697
Argyrios Kyrtzidise24692b2011-09-15 18:02:56 +00003698 SavedStreamPosition SavedPosition(M.PreprocessorDetailCursor);
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003699 M.PreprocessorDetailCursor.JumpToBit(PPOffs.BitOffset);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003700
3701 unsigned Code = M.PreprocessorDetailCursor.ReadCode();
3702 switch (Code) {
3703 case llvm::bitc::END_BLOCK:
3704 return 0;
3705
3706 case llvm::bitc::ENTER_SUBBLOCK:
3707 Error("unexpected subblock record in preprocessor detail block");
3708 return 0;
3709
3710 case llvm::bitc::DEFINE_ABBREV:
3711 Error("unexpected abbrevation record in preprocessor detail block");
3712 return 0;
3713
3714 default:
3715 break;
3716 }
3717
3718 if (!PP.getPreprocessingRecord()) {
3719 Error("no preprocessing record");
3720 return 0;
3721 }
3722
3723 // Read the record.
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003724 SourceRange Range(ReadSourceLocation(M, PPOffs.Begin),
3725 ReadSourceLocation(M, PPOffs.End));
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003726 PreprocessingRecord &PPRec = *PP.getPreprocessingRecord();
3727 const char *BlobStart = 0;
3728 unsigned BlobLen = 0;
3729 RecordData Record;
3730 PreprocessorDetailRecordTypes RecType =
3731 (PreprocessorDetailRecordTypes)M.PreprocessorDetailCursor.ReadRecord(
3732 Code, Record, BlobStart, BlobLen);
3733 switch (RecType) {
3734 case PPD_MACRO_EXPANSION: {
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003735 bool isBuiltin = Record[0];
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003736 IdentifierInfo *Name = 0;
3737 MacroDefinition *Def = 0;
3738 if (isBuiltin)
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003739 Name = getLocalIdentifier(M, Record[1]);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003740 else {
3741 PreprocessedEntityID
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003742 GlobalID = getGlobalPreprocessedEntityID(M, Record[1]);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003743 Def =cast<MacroDefinition>(PPRec.getLoadedPreprocessedEntity(GlobalID-1));
3744 }
3745
3746 MacroExpansion *ME;
3747 if (isBuiltin)
3748 ME = new (PPRec) MacroExpansion(Name, Range);
3749 else
3750 ME = new (PPRec) MacroExpansion(Def, Range);
3751
3752 return ME;
3753 }
3754
3755 case PPD_MACRO_DEFINITION: {
3756 // Decode the identifier info and then check again; if the macro is
3757 // still defined and associated with the identifier,
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003758 IdentifierInfo *II = getLocalIdentifier(M, Record[0]);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003759 MacroDefinition *MD
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003760 = new (PPRec) MacroDefinition(II, Range);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003761
3762 if (DeserializationListener)
3763 DeserializationListener->MacroDefinitionRead(PPID, MD);
3764
3765 return MD;
3766 }
3767
3768 case PPD_INCLUSION_DIRECTIVE: {
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003769 const char *FullFileNameStart = BlobStart + Record[0];
Argyrios Kyrtzidis29f98b42012-03-08 01:08:28 +00003770 StringRef FullFileName(FullFileNameStart, BlobLen - Record[0]);
3771 const FileEntry *File = 0;
3772 if (!FullFileName.empty())
3773 File = PP.getFileManager().getFile(FullFileName);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003774
3775 // FIXME: Stable encoding
3776 InclusionDirective::InclusionKind Kind
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003777 = static_cast<InclusionDirective::InclusionKind>(Record[2]);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003778 InclusionDirective *ID
3779 = new (PPRec) InclusionDirective(PPRec, Kind,
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003780 StringRef(BlobStart, Record[0]),
Argyrios Kyrtzidis8dd927c2012-10-02 16:10:46 +00003781 Record[1], Record[3],
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003782 File,
Argyrios Kyrtzidis8f958f12011-09-20 23:27:41 +00003783 Range);
Argyrios Kyrtzidis290ad8c2011-09-20 23:27:38 +00003784 return ID;
3785 }
3786 }
David Blaikie7530c032012-01-17 06:56:22 +00003787
3788 llvm_unreachable("Invalid PreprocessorDetailRecordTypes");
Douglas Gregor6a5a23f2010-03-19 21:51:54 +00003789}
3790
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003791/// \brief \arg SLocMapI points at a chunk of a module that contains no
3792/// preprocessed entities or the entities it contains are not the ones we are
3793/// looking for. Find the next module that contains entities and return the ID
3794/// of the first entry.
3795PreprocessedEntityID ASTReader::findNextPreprocessedEntity(
3796 GlobalSLocOffsetMapType::const_iterator SLocMapI) const {
3797 ++SLocMapI;
3798 for (GlobalSLocOffsetMapType::const_iterator
3799 EndI = GlobalSLocOffsetMap.end(); SLocMapI != EndI; ++SLocMapI) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003800 ModuleFile &M = *SLocMapI->second;
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003801 if (M.NumPreprocessedEntities)
3802 return getGlobalPreprocessedEntityID(M, M.BasePreprocessedEntityID);
3803 }
3804
3805 return getTotalNumPreprocessedEntities();
3806}
3807
3808namespace {
3809
3810template <unsigned PPEntityOffset::*PPLoc>
3811struct PPEntityComp {
3812 const ASTReader &Reader;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003813 ModuleFile &M;
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003814
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003815 PPEntityComp(const ASTReader &Reader, ModuleFile &M) : Reader(Reader), M(M) { }
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003816
Benjamin Kramer88df1252011-09-21 06:42:26 +00003817 bool operator()(const PPEntityOffset &L, const PPEntityOffset &R) const {
3818 SourceLocation LHS = getLoc(L);
3819 SourceLocation RHS = getLoc(R);
3820 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
3821 }
3822
3823 bool operator()(const PPEntityOffset &L, SourceLocation RHS) const {
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003824 SourceLocation LHS = getLoc(L);
3825 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
3826 }
3827
Benjamin Kramer88df1252011-09-21 06:42:26 +00003828 bool operator()(SourceLocation LHS, const PPEntityOffset &R) const {
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003829 SourceLocation RHS = getLoc(R);
3830 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
3831 }
3832
3833 SourceLocation getLoc(const PPEntityOffset &PPE) const {
3834 return Reader.ReadSourceLocation(M, PPE.*PPLoc);
3835 }
3836};
3837
3838}
3839
3840/// \brief Returns the first preprocessed entity ID that ends after \arg BLoc.
3841PreprocessedEntityID
3842ASTReader::findBeginPreprocessedEntity(SourceLocation BLoc) const {
3843 if (SourceMgr.isLocalSourceLocation(BLoc))
3844 return getTotalNumPreprocessedEntities();
3845
3846 GlobalSLocOffsetMapType::const_iterator
3847 SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
3848 BLoc.getOffset());
3849 assert(SLocMapI != GlobalSLocOffsetMap.end() &&
3850 "Corrupted global sloc offset map");
3851
3852 if (SLocMapI->second->NumPreprocessedEntities == 0)
3853 return findNextPreprocessedEntity(SLocMapI);
3854
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003855 ModuleFile &M = *SLocMapI->second;
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003856 typedef const PPEntityOffset *pp_iterator;
3857 pp_iterator pp_begin = M.PreprocessedEntityOffsets;
3858 pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
Argyrios Kyrtzidis4cd06342011-09-22 21:17:02 +00003859
3860 size_t Count = M.NumPreprocessedEntities;
3861 size_t Half;
3862 pp_iterator First = pp_begin;
3863 pp_iterator PPI;
3864
3865 // Do a binary search manually instead of using std::lower_bound because
3866 // The end locations of entities may be unordered (when a macro expansion
3867 // is inside another macro argument), but for this case it is not important
3868 // whether we get the first macro expansion or its containing macro.
3869 while (Count > 0) {
3870 Half = Count/2;
3871 PPI = First;
3872 std::advance(PPI, Half);
3873 if (SourceMgr.isBeforeInTranslationUnit(ReadSourceLocation(M, PPI->End),
3874 BLoc)){
3875 First = PPI;
3876 ++First;
3877 Count = Count - Half - 1;
3878 } else
3879 Count = Half;
3880 }
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003881
3882 if (PPI == pp_end)
3883 return findNextPreprocessedEntity(SLocMapI);
3884
3885 return getGlobalPreprocessedEntityID(M,
3886 M.BasePreprocessedEntityID + (PPI - pp_begin));
3887}
3888
3889/// \brief Returns the first preprocessed entity ID that begins after \arg ELoc.
3890PreprocessedEntityID
3891ASTReader::findEndPreprocessedEntity(SourceLocation ELoc) const {
3892 if (SourceMgr.isLocalSourceLocation(ELoc))
3893 return getTotalNumPreprocessedEntities();
3894
3895 GlobalSLocOffsetMapType::const_iterator
3896 SLocMapI = GlobalSLocOffsetMap.find(SourceManager::MaxLoadedOffset -
3897 ELoc.getOffset());
3898 assert(SLocMapI != GlobalSLocOffsetMap.end() &&
3899 "Corrupted global sloc offset map");
3900
3901 if (SLocMapI->second->NumPreprocessedEntities == 0)
3902 return findNextPreprocessedEntity(SLocMapI);
3903
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003904 ModuleFile &M = *SLocMapI->second;
Argyrios Kyrtzidis2dbaca72011-09-19 20:40:25 +00003905 typedef const PPEntityOffset *pp_iterator;
3906 pp_iterator pp_begin = M.PreprocessedEntityOffsets;
3907 pp_iterator pp_end = pp_begin + M.NumPreprocessedEntities;
3908 pp_iterator PPI =
3909 std::upper_bound(pp_begin, pp_end, ELoc,
3910 PPEntityComp<&PPEntityOffset::Begin>(*this, M));
3911
3912 if (PPI == pp_end)
3913 return findNextPreprocessedEntity(SLocMapI);
3914
3915 return getGlobalPreprocessedEntityID(M,
3916 M.BasePreprocessedEntityID + (PPI - pp_begin));
3917}
3918
3919/// \brief Returns a pair of [Begin, End) indices of preallocated
3920/// preprocessed entities that \arg Range encompasses.
3921std::pair<unsigned, unsigned>
3922 ASTReader::findPreprocessedEntitiesInRange(SourceRange Range) {
3923 if (Range.isInvalid())
3924 return std::make_pair(0,0);
3925 assert(!SourceMgr.isBeforeInTranslationUnit(Range.getEnd(),Range.getBegin()));
3926
3927 PreprocessedEntityID BeginID = findBeginPreprocessedEntity(Range.getBegin());
3928 PreprocessedEntityID EndID = findEndPreprocessedEntity(Range.getEnd());
3929 return std::make_pair(BeginID, EndID);
3930}
3931
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003932/// \brief Optionally returns true or false if the preallocated preprocessed
3933/// entity with index \arg Index came from file \arg FID.
3934llvm::Optional<bool> ASTReader::isPreprocessedEntityInFileID(unsigned Index,
3935 FileID FID) {
3936 if (FID.isInvalid())
3937 return false;
3938
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003939 std::pair<ModuleFile *, unsigned> PPInfo = getModulePreprocessedEntity(Index);
3940 ModuleFile &M = *PPInfo.first;
Argyrios Kyrtzidisf226ff92011-10-25 00:29:50 +00003941 unsigned LocalIndex = PPInfo.second;
3942 const PPEntityOffset &PPOffs = M.PreprocessedEntityOffsets[LocalIndex];
3943
3944 SourceLocation Loc = ReadSourceLocation(M, PPOffs.Begin);
3945 if (Loc.isInvalid())
3946 return false;
3947
3948 if (SourceMgr.isInFileID(SourceMgr.getFileLoc(Loc), FID))
3949 return true;
3950 else
3951 return false;
3952}
3953
Douglas Gregord10a3812011-08-25 18:14:34 +00003954namespace {
3955 /// \brief Visitor used to search for information about a header file.
3956 class HeaderFileInfoVisitor {
3957 ASTReader &Reader;
3958 const FileEntry *FE;
3959
3960 llvm::Optional<HeaderFileInfo> HFI;
3961
3962 public:
3963 HeaderFileInfoVisitor(ASTReader &Reader, const FileEntry *FE)
3964 : Reader(Reader), FE(FE) { }
3965
Douglas Gregor1a4761e2011-11-30 23:21:26 +00003966 static bool visit(ModuleFile &M, void *UserData) {
Douglas Gregord10a3812011-08-25 18:14:34 +00003967 HeaderFileInfoVisitor *This
3968 = static_cast<HeaderFileInfoVisitor *>(UserData);
3969
3970 HeaderFileInfoTrait Trait(This->Reader, M,
3971 &This->Reader.getPreprocessor().getHeaderSearchInfo(),
3972 M.HeaderFileFrameworkStrings,
3973 This->FE->getName());
3974
3975 HeaderFileInfoLookupTable *Table
3976 = static_cast<HeaderFileInfoLookupTable *>(M.HeaderFileInfoTable);
3977 if (!Table)
3978 return false;
3979
3980 // Look in the on-disk hash table for an entry for this file name.
3981 HeaderFileInfoLookupTable::iterator Pos = Table->find(This->FE->getName(),
3982 &Trait);
3983 if (Pos == Table->end())
3984 return false;
3985
3986 This->HFI = *Pos;
3987 return true;
3988 }
3989
3990 llvm::Optional<HeaderFileInfo> getHeaderFileInfo() const { return HFI; }
3991 };
3992}
3993
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00003994HeaderFileInfo ASTReader::GetHeaderFileInfo(const FileEntry *FE) {
Douglas Gregord10a3812011-08-25 18:14:34 +00003995 HeaderFileInfoVisitor Visitor(*this, FE);
3996 ModuleMgr.visit(&HeaderFileInfoVisitor::visit, &Visitor);
3997 if (llvm::Optional<HeaderFileInfo> HFI = Visitor.getHeaderFileInfo()) {
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00003998 if (Listener)
Douglas Gregord10a3812011-08-25 18:14:34 +00003999 Listener->ReadHeaderFileInfo(*HFI, FE->getUID());
4000 return *HFI;
Douglas Gregorcfbf1c72011-02-10 17:09:37 +00004001 }
4002
4003 return HeaderFileInfo();
4004}
4005
David Blaikied6471f72011-09-25 23:23:43 +00004006void ASTReader::ReadPragmaDiagnosticMappings(DiagnosticsEngine &Diag) {
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00004007 for (ModuleIterator I = ModuleMgr.begin(), E = ModuleMgr.end(); I != E; ++I) {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004008 ModuleFile &F = *(*I);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00004009 unsigned Idx = 0;
4010 while (Idx < F.PragmaDiagMappings.size()) {
4011 SourceLocation Loc = ReadSourceLocation(F, F.PragmaDiagMappings[Idx++]);
Argyrios Kyrtzidis87429a02011-11-09 01:24:17 +00004012 Diag.DiagStates.push_back(*Diag.GetCurDiagState());
4013 Diag.DiagStatePoints.push_back(
4014 DiagnosticsEngine::DiagStatePoint(&Diag.DiagStates.back(),
4015 FullSourceLoc(Loc, SourceMgr)));
Douglas Gregorf62d43d2011-07-19 16:10:42 +00004016 while (1) {
4017 assert(Idx < F.PragmaDiagMappings.size() &&
4018 "Invalid data, didn't find '-1' marking end of diag/map pairs");
4019 if (Idx >= F.PragmaDiagMappings.size()) {
4020 break; // Something is messed up but at least avoid infinite loop in
4021 // release build.
4022 }
4023 unsigned DiagID = F.PragmaDiagMappings[Idx++];
4024 if (DiagID == (unsigned)-1) {
4025 break; // no more diag/map pairs for this location.
4026 }
4027 diag::Mapping Map = (diag::Mapping)F.PragmaDiagMappings[Idx++];
Argyrios Kyrtzidis87429a02011-11-09 01:24:17 +00004028 DiagnosticMappingInfo MappingInfo = Diag.makeMappingInfo(Map, Loc);
4029 Diag.GetCurDiagState()->setMappingInfo(DiagID, MappingInfo);
Douglas Gregorf62d43d2011-07-19 16:10:42 +00004030 }
Argyrios Kyrtzidis3efd52c2011-01-14 20:54:07 +00004031 }
Argyrios Kyrtzidisf41d3be2010-11-05 22:10:18 +00004032 }
4033}
4034
Sebastian Redlaaec0aa2010-07-20 22:37:49 +00004035/// \brief Get the correct cursor and offset for loading a type.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00004036ASTReader::RecordLocation ASTReader::TypeCursorForIndex(unsigned Index) {
Douglas Gregora119da02011-08-02 16:26:37 +00004037 GlobalTypeMapType::iterator I = GlobalTypeMap.find(Index);
Jonathan D. Turnere9b76c12011-07-20 21:31:32 +00004038 assert(I != GlobalTypeMap.end() && "Corrupted global type map");
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004039 ModuleFile *M = I->second;
Douglas Gregore3605012011-08-02 18:32:54 +00004040 return RecordLocation(M, M->TypeOffsets[Index - M->BaseTypeIndex]);
Sebastian Redlaaec0aa2010-07-20 22:37:49 +00004041}
4042
4043/// \brief Read and return the type with the given index..
Douglas Gregor2cf26342009-04-09 22:27:44 +00004044///
Sebastian Redlaaec0aa2010-07-20 22:37:49 +00004045/// The index is the type ID, shifted and minus the number of predefs. This
4046/// routine actually reads the record corresponding to the type at the given
4047/// location. It is a helper routine for GetType, which deals with reading type
4048/// IDs.
Douglas Gregor393f2492011-07-22 00:38:23 +00004049QualType ASTReader::readTypeRecord(unsigned Index) {
Sebastian Redlaaec0aa2010-07-20 22:37:49 +00004050 RecordLocation Loc = TypeCursorForIndex(Index);
Sebastian Redlc3632732010-10-05 15:59:54 +00004051 llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
Sebastian Redl9137a522010-07-16 17:50:48 +00004052
Douglas Gregor0b748912009-04-14 21:18:50 +00004053 // Keep track of where we are in the stream, then jump back there
4054 // after reading this type.
Douglas Gregor61d60ee2009-10-17 00:13:19 +00004055 SavedStreamPosition SavedPosition(DeclsCursor);
Douglas Gregor0b748912009-04-14 21:18:50 +00004056
Argyrios Kyrtzidis919e6932010-06-28 22:28:35 +00004057 ReadingKindTracker ReadingKind(Read_Type, *this);
Sebastian Redl27372b42010-08-11 18:52:41 +00004058
Douglas Gregord89275b2009-07-06 18:54:52 +00004059 // Note that we are loading a type record.
Argyrios Kyrtzidis29ee3a22010-07-30 10:03:16 +00004060 Deserializing AType(this);
Mike Stump1eb44332009-09-09 15:08:12 +00004061
Douglas Gregor393f2492011-07-22 00:38:23 +00004062 unsigned Idx = 0;
Sebastian Redlc3632732010-10-05 15:59:54 +00004063 DeclsCursor.JumpToBit(Loc.Offset);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004064 RecordData Record;
Douglas Gregor61d60ee2009-10-17 00:13:19 +00004065 unsigned Code = DeclsCursor.ReadCode();
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004066 switch ((TypeCode)DeclsCursor.ReadRecord(Code, Record)) {
4067 case TYPE_EXT_QUAL: {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004068 if (Record.size() != 2) {
4069 Error("Incorrect encoding of extended qualifier type");
4070 return QualType();
4071 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004072 QualType Base = readType(*Loc.F, Record, Idx);
4073 Qualifiers Quals = Qualifiers::fromOpaqueValue(Record[Idx++]);
Douglas Gregor35942772011-09-09 21:34:22 +00004074 return Context.getQualifiedType(Base, Quals);
Douglas Gregor6d473962009-04-15 22:00:08 +00004075 }
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004076
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004077 case TYPE_COMPLEX: {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004078 if (Record.size() != 1) {
4079 Error("Incorrect encoding of complex type");
4080 return QualType();
4081 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004082 QualType ElemType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004083 return Context.getComplexType(ElemType);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004084 }
4085
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004086 case TYPE_POINTER: {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004087 if (Record.size() != 1) {
4088 Error("Incorrect encoding of pointer type");
4089 return QualType();
4090 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004091 QualType PointeeType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004092 return Context.getPointerType(PointeeType);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004093 }
4094
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004095 case TYPE_BLOCK_POINTER: {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004096 if (Record.size() != 1) {
4097 Error("Incorrect encoding of block pointer type");
4098 return QualType();
4099 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004100 QualType PointeeType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004101 return Context.getBlockPointerType(PointeeType);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004102 }
4103
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004104 case TYPE_LVALUE_REFERENCE: {
Richard Smithdf1550f2011-04-12 10:38:03 +00004105 if (Record.size() != 2) {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004106 Error("Incorrect encoding of lvalue reference type");
4107 return QualType();
4108 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004109 QualType PointeeType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004110 return Context.getLValueReferenceType(PointeeType, Record[1]);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004111 }
4112
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004113 case TYPE_RVALUE_REFERENCE: {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004114 if (Record.size() != 1) {
4115 Error("Incorrect encoding of rvalue reference type");
4116 return QualType();
4117 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004118 QualType PointeeType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004119 return Context.getRValueReferenceType(PointeeType);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004120 }
4121
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004122 case TYPE_MEMBER_POINTER: {
Argyrios Kyrtzidis240437b2010-07-02 11:55:15 +00004123 if (Record.size() != 2) {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004124 Error("Incorrect encoding of member pointer type");
4125 return QualType();
4126 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004127 QualType PointeeType = readType(*Loc.F, Record, Idx);
4128 QualType ClassType = readType(*Loc.F, Record, Idx);
Douglas Gregor1ab55e92010-12-10 17:03:06 +00004129 if (PointeeType.isNull() || ClassType.isNull())
4130 return QualType();
4131
Douglas Gregor35942772011-09-09 21:34:22 +00004132 return Context.getMemberPointerType(PointeeType, ClassType.getTypePtr());
Douglas Gregor2cf26342009-04-09 22:27:44 +00004133 }
4134
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004135 case TYPE_CONSTANT_ARRAY: {
Douglas Gregor393f2492011-07-22 00:38:23 +00004136 QualType ElementType = readType(*Loc.F, Record, Idx);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004137 ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
4138 unsigned IndexTypeQuals = Record[2];
4139 unsigned Idx = 3;
4140 llvm::APInt Size = ReadAPInt(Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004141 return Context.getConstantArrayType(ElementType, Size,
Douglas Gregor7e7eb3d2009-07-06 15:59:29 +00004142 ASM, IndexTypeQuals);
4143 }
4144
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004145 case TYPE_INCOMPLETE_ARRAY: {
Douglas Gregor393f2492011-07-22 00:38:23 +00004146 QualType ElementType = readType(*Loc.F, Record, Idx);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004147 ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
4148 unsigned IndexTypeQuals = Record[2];
Douglas Gregor35942772011-09-09 21:34:22 +00004149 return Context.getIncompleteArrayType(ElementType, ASM, IndexTypeQuals);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004150 }
4151
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004152 case TYPE_VARIABLE_ARRAY: {
Douglas Gregor393f2492011-07-22 00:38:23 +00004153 QualType ElementType = readType(*Loc.F, Record, Idx);
Douglas Gregor0b748912009-04-14 21:18:50 +00004154 ArrayType::ArraySizeModifier ASM = (ArrayType::ArraySizeModifier)Record[1];
4155 unsigned IndexTypeQuals = Record[2];
Sebastian Redlc3632732010-10-05 15:59:54 +00004156 SourceLocation LBLoc = ReadSourceLocation(*Loc.F, Record[3]);
4157 SourceLocation RBLoc = ReadSourceLocation(*Loc.F, Record[4]);
Douglas Gregor35942772011-09-09 21:34:22 +00004158 return Context.getVariableArrayType(ElementType, ReadExpr(*Loc.F),
Douglas Gregor7e7eb3d2009-07-06 15:59:29 +00004159 ASM, IndexTypeQuals,
4160 SourceRange(LBLoc, RBLoc));
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004161 }
4162
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004163 case TYPE_VECTOR: {
Chris Lattner788b0fd2010-06-23 06:00:24 +00004164 if (Record.size() != 3) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00004165 Error("incorrect encoding of vector type in AST file");
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004166 return QualType();
4167 }
4168
Douglas Gregor393f2492011-07-22 00:38:23 +00004169 QualType ElementType = readType(*Loc.F, Record, Idx);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004170 unsigned NumElements = Record[1];
Bob Wilsone86d78c2010-11-10 21:56:12 +00004171 unsigned VecKind = Record[2];
Douglas Gregor35942772011-09-09 21:34:22 +00004172 return Context.getVectorType(ElementType, NumElements,
Bob Wilsone86d78c2010-11-10 21:56:12 +00004173 (VectorType::VectorKind)VecKind);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004174 }
4175
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004176 case TYPE_EXT_VECTOR: {
Chris Lattner788b0fd2010-06-23 06:00:24 +00004177 if (Record.size() != 3) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00004178 Error("incorrect encoding of extended vector type in AST file");
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004179 return QualType();
4180 }
4181
Douglas Gregor393f2492011-07-22 00:38:23 +00004182 QualType ElementType = readType(*Loc.F, Record, Idx);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004183 unsigned NumElements = Record[1];
Douglas Gregor35942772011-09-09 21:34:22 +00004184 return Context.getExtVectorType(ElementType, NumElements);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004185 }
4186
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004187 case TYPE_FUNCTION_NO_PROTO: {
John McCallf85e1932011-06-15 23:02:42 +00004188 if (Record.size() != 6) {
Douglas Gregora02b1472009-04-28 21:53:25 +00004189 Error("incorrect encoding of no-proto function type");
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004190 return QualType();
4191 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004192 QualType ResultType = readType(*Loc.F, Record, Idx);
John McCallf85e1932011-06-15 23:02:42 +00004193 FunctionType::ExtInfo Info(Record[1], Record[2], Record[3],
4194 (CallingConv)Record[4], Record[5]);
Douglas Gregor35942772011-09-09 21:34:22 +00004195 return Context.getFunctionNoProtoType(ResultType, Info);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004196 }
4197
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004198 case TYPE_FUNCTION_PROTO: {
Douglas Gregor393f2492011-07-22 00:38:23 +00004199 QualType ResultType = readType(*Loc.F, Record, Idx);
John McCalle23cf432010-12-14 08:05:40 +00004200
4201 FunctionProtoType::ExtProtoInfo EPI;
4202 EPI.ExtInfo = FunctionType::ExtInfo(/*noreturn*/ Record[1],
Eli Friedmana49218e2011-04-09 08:18:08 +00004203 /*hasregparm*/ Record[2],
4204 /*regparm*/ Record[3],
John McCallf85e1932011-06-15 23:02:42 +00004205 static_cast<CallingConv>(Record[4]),
4206 /*produces*/ Record[5]);
John McCalle23cf432010-12-14 08:05:40 +00004207
John McCallf85e1932011-06-15 23:02:42 +00004208 unsigned Idx = 6;
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004209 unsigned NumParams = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00004210 SmallVector<QualType, 16> ParamTypes;
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004211 for (unsigned I = 0; I != NumParams; ++I)
Douglas Gregor393f2492011-07-22 00:38:23 +00004212 ParamTypes.push_back(readType(*Loc.F, Record, Idx));
John McCalle23cf432010-12-14 08:05:40 +00004213
4214 EPI.Variadic = Record[Idx++];
Richard Smitheefb3d52012-02-10 09:58:53 +00004215 EPI.HasTrailingReturn = Record[Idx++];
John McCalle23cf432010-12-14 08:05:40 +00004216 EPI.TypeQuals = Record[Idx++];
Douglas Gregorc938c162011-01-26 05:01:58 +00004217 EPI.RefQualifier = static_cast<RefQualifierKind>(Record[Idx++]);
Sebastian Redl60618fa2011-03-12 11:50:43 +00004218 ExceptionSpecificationType EST =
4219 static_cast<ExceptionSpecificationType>(Record[Idx++]);
4220 EPI.ExceptionSpecType = EST;
Douglas Gregorb0d06e22012-04-04 00:34:49 +00004221 SmallVector<QualType, 2> Exceptions;
Sebastian Redl60618fa2011-03-12 11:50:43 +00004222 if (EST == EST_Dynamic) {
4223 EPI.NumExceptions = Record[Idx++];
Sebastian Redl60618fa2011-03-12 11:50:43 +00004224 for (unsigned I = 0; I != EPI.NumExceptions; ++I)
Douglas Gregor393f2492011-07-22 00:38:23 +00004225 Exceptions.push_back(readType(*Loc.F, Record, Idx));
Sebastian Redl60618fa2011-03-12 11:50:43 +00004226 EPI.Exceptions = Exceptions.data();
4227 } else if (EST == EST_ComputedNoexcept) {
4228 EPI.NoexceptExpr = ReadExpr(*Loc.F);
Richard Smith7bb698a2012-04-21 17:47:47 +00004229 } else if (EST == EST_Uninstantiated) {
4230 EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
4231 EPI.ExceptionSpecTemplate = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
Richard Smithb9d0b762012-07-27 04:22:15 +00004232 } else if (EST == EST_Unevaluated) {
4233 EPI.ExceptionSpecDecl = ReadDeclAs<FunctionDecl>(*Loc.F, Record, Idx);
Sebastian Redl60618fa2011-03-12 11:50:43 +00004234 }
Douglas Gregor35942772011-09-09 21:34:22 +00004235 return Context.getFunctionType(ResultType, ParamTypes.data(), NumParams,
John McCalle23cf432010-12-14 08:05:40 +00004236 EPI);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004237 }
4238
Douglas Gregor409448c2011-07-21 22:35:25 +00004239 case TYPE_UNRESOLVED_USING: {
4240 unsigned Idx = 0;
Douglas Gregor35942772011-09-09 21:34:22 +00004241 return Context.getTypeDeclType(
Douglas Gregor409448c2011-07-21 22:35:25 +00004242 ReadDeclAs<UnresolvedUsingTypenameDecl>(*Loc.F, Record, Idx));
4243 }
4244
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004245 case TYPE_TYPEDEF: {
Argyrios Kyrtzidis9763e222010-07-02 11:55:11 +00004246 if (Record.size() != 2) {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004247 Error("incorrect encoding of typedef type");
4248 return QualType();
4249 }
Douglas Gregor409448c2011-07-21 22:35:25 +00004250 unsigned Idx = 0;
4251 TypedefNameDecl *Decl = ReadDeclAs<TypedefNameDecl>(*Loc.F, Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00004252 QualType Canonical = readType(*Loc.F, Record, Idx);
Douglas Gregor32adc8b2010-10-26 00:51:02 +00004253 if (!Canonical.isNull())
Douglas Gregor35942772011-09-09 21:34:22 +00004254 Canonical = Context.getCanonicalType(Canonical);
4255 return Context.getTypedefType(Decl, Canonical);
Argyrios Kyrtzidis9763e222010-07-02 11:55:11 +00004256 }
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004257
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004258 case TYPE_TYPEOF_EXPR:
Douglas Gregor35942772011-09-09 21:34:22 +00004259 return Context.getTypeOfExprType(ReadExpr(*Loc.F));
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004260
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004261 case TYPE_TYPEOF: {
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004262 if (Record.size() != 1) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00004263 Error("incorrect encoding of typeof(type) in AST file");
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004264 return QualType();
4265 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004266 QualType UnderlyingType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004267 return Context.getTypeOfType(UnderlyingType);
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004268 }
Mike Stump1eb44332009-09-09 15:08:12 +00004269
Douglas Gregorf8af9822012-02-12 18:42:33 +00004270 case TYPE_DECLTYPE: {
4271 QualType UnderlyingType = readType(*Loc.F, Record, Idx);
4272 return Context.getDecltypeType(ReadExpr(*Loc.F), UnderlyingType);
4273 }
Anders Carlsson395b4752009-06-24 19:06:50 +00004274
Sean Huntca63c202011-05-24 22:41:36 +00004275 case TYPE_UNARY_TRANSFORM: {
Douglas Gregor393f2492011-07-22 00:38:23 +00004276 QualType BaseType = readType(*Loc.F, Record, Idx);
4277 QualType UnderlyingType = readType(*Loc.F, Record, Idx);
Sean Huntca63c202011-05-24 22:41:36 +00004278 UnaryTransformType::UTTKind UKind = (UnaryTransformType::UTTKind)Record[2];
Douglas Gregor35942772011-09-09 21:34:22 +00004279 return Context.getUnaryTransformType(BaseType, UnderlyingType, UKind);
Sean Huntca63c202011-05-24 22:41:36 +00004280 }
4281
Richard Smith34b41d92011-02-20 03:19:35 +00004282 case TYPE_AUTO:
Douglas Gregor35942772011-09-09 21:34:22 +00004283 return Context.getAutoType(readType(*Loc.F, Record, Idx));
Richard Smith34b41d92011-02-20 03:19:35 +00004284
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004285 case TYPE_RECORD: {
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004286 if (Record.size() != 2) {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004287 Error("incorrect encoding of record type");
4288 return QualType();
4289 }
Douglas Gregor409448c2011-07-21 22:35:25 +00004290 unsigned Idx = 0;
4291 bool IsDependent = Record[Idx++];
Douglas Gregor56ca8a92012-01-17 19:21:53 +00004292 RecordDecl *RD = ReadDeclAs<RecordDecl>(*Loc.F, Record, Idx);
4293 RD = cast_or_null<RecordDecl>(RD->getCanonicalDecl());
4294 QualType T = Context.getRecordType(RD);
John McCallf4c73712011-01-19 06:33:43 +00004295 const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004296 return T;
4297 }
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004298
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004299 case TYPE_ENUM: {
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004300 if (Record.size() != 2) {
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00004301 Error("incorrect encoding of enum type");
4302 return QualType();
4303 }
Douglas Gregor409448c2011-07-21 22:35:25 +00004304 unsigned Idx = 0;
4305 bool IsDependent = Record[Idx++];
4306 QualType T
Douglas Gregor35942772011-09-09 21:34:22 +00004307 = Context.getEnumType(ReadDeclAs<EnumDecl>(*Loc.F, Record, Idx));
John McCallf4c73712011-01-19 06:33:43 +00004308 const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004309 return T;
4310 }
Douglas Gregor0a2b45e2009-04-13 18:14:40 +00004311
John McCall9d156a72011-01-06 01:58:22 +00004312 case TYPE_ATTRIBUTED: {
4313 if (Record.size() != 3) {
4314 Error("incorrect encoding of attributed type");
4315 return QualType();
4316 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004317 QualType modifiedType = readType(*Loc.F, Record, Idx);
4318 QualType equivalentType = readType(*Loc.F, Record, Idx);
John McCall9d156a72011-01-06 01:58:22 +00004319 AttributedType::Kind kind = static_cast<AttributedType::Kind>(Record[2]);
Douglas Gregor35942772011-09-09 21:34:22 +00004320 return Context.getAttributedType(kind, modifiedType, equivalentType);
John McCall9d156a72011-01-06 01:58:22 +00004321 }
4322
Abramo Bagnara075f8f12010-12-10 16:29:40 +00004323 case TYPE_PAREN: {
4324 if (Record.size() != 1) {
4325 Error("incorrect encoding of paren type");
4326 return QualType();
4327 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004328 QualType InnerType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004329 return Context.getParenType(InnerType);
Abramo Bagnara075f8f12010-12-10 16:29:40 +00004330 }
4331
Douglas Gregor7536dd52010-12-20 02:24:11 +00004332 case TYPE_PACK_EXPANSION: {
Douglas Gregorf9997a02011-02-01 15:24:58 +00004333 if (Record.size() != 2) {
Douglas Gregor7536dd52010-12-20 02:24:11 +00004334 Error("incorrect encoding of pack expansion type");
4335 return QualType();
4336 }
Douglas Gregor393f2492011-07-22 00:38:23 +00004337 QualType Pattern = readType(*Loc.F, Record, Idx);
Douglas Gregor7536dd52010-12-20 02:24:11 +00004338 if (Pattern.isNull())
4339 return QualType();
Douglas Gregorcded4f62011-01-14 17:04:44 +00004340 llvm::Optional<unsigned> NumExpansions;
4341 if (Record[1])
4342 NumExpansions = Record[1] - 1;
Douglas Gregor35942772011-09-09 21:34:22 +00004343 return Context.getPackExpansionType(Pattern, NumExpansions);
Douglas Gregor7536dd52010-12-20 02:24:11 +00004344 }
4345
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004346 case TYPE_ELABORATED: {
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +00004347 unsigned Idx = 0;
4348 ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
Douglas Gregor409448c2011-07-21 22:35:25 +00004349 NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00004350 QualType NamedType = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004351 return Context.getElaboratedType(Keyword, NNS, NamedType);
John McCall7da24312009-09-05 00:15:47 +00004352 }
4353
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004354 case TYPE_OBJC_INTERFACE: {
Chris Lattnerc6fa4452009-04-22 06:45:28 +00004355 unsigned Idx = 0;
Douglas Gregor409448c2011-07-21 22:35:25 +00004356 ObjCInterfaceDecl *ItfD
4357 = ReadDeclAs<ObjCInterfaceDecl>(*Loc.F, Record, Idx);
Douglas Gregor56ca8a92012-01-17 19:21:53 +00004358 return Context.getObjCInterfaceType(ItfD->getCanonicalDecl());
John McCallc12c5bb2010-05-15 11:32:37 +00004359 }
4360
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004361 case TYPE_OBJC_OBJECT: {
John McCallc12c5bb2010-05-15 11:32:37 +00004362 unsigned Idx = 0;
Douglas Gregor393f2492011-07-22 00:38:23 +00004363 QualType Base = readType(*Loc.F, Record, Idx);
Chris Lattnerc6fa4452009-04-22 06:45:28 +00004364 unsigned NumProtos = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00004365 SmallVector<ObjCProtocolDecl*, 4> Protos;
Chris Lattnerc6fa4452009-04-22 06:45:28 +00004366 for (unsigned I = 0; I != NumProtos; ++I)
Douglas Gregor409448c2011-07-21 22:35:25 +00004367 Protos.push_back(ReadDeclAs<ObjCProtocolDecl>(*Loc.F, Record, Idx));
Douglas Gregor35942772011-09-09 21:34:22 +00004368 return Context.getObjCObjectType(Base, Protos.data(), NumProtos);
Chris Lattnerc6fa4452009-04-22 06:45:28 +00004369 }
Douglas Gregorb4e715b2009-04-13 20:46:52 +00004370
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004371 case TYPE_OBJC_OBJECT_POINTER: {
Chris Lattnerd7a3fcd2009-04-22 06:40:03 +00004372 unsigned Idx = 0;
Douglas Gregor393f2492011-07-22 00:38:23 +00004373 QualType Pointee = readType(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004374 return Context.getObjCObjectPointerType(Pointee);
Chris Lattnerd7a3fcd2009-04-22 06:40:03 +00004375 }
Argyrios Kyrtzidis24fab412009-09-29 19:42:55 +00004376
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004377 case TYPE_SUBST_TEMPLATE_TYPE_PARM: {
John McCall49a832b2009-10-18 09:09:24 +00004378 unsigned Idx = 0;
Douglas Gregor393f2492011-07-22 00:38:23 +00004379 QualType Parm = readType(*Loc.F, Record, Idx);
4380 QualType Replacement = readType(*Loc.F, Record, Idx);
John McCall49a832b2009-10-18 09:09:24 +00004381 return
Douglas Gregor35942772011-09-09 21:34:22 +00004382 Context.getSubstTemplateTypeParmType(cast<TemplateTypeParmType>(Parm),
John McCall49a832b2009-10-18 09:09:24 +00004383 Replacement);
4384 }
John McCall3cb0ebd2010-03-10 03:28:59 +00004385
Douglas Gregorc3069d62011-01-14 02:55:32 +00004386 case TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK: {
4387 unsigned Idx = 0;
Douglas Gregor393f2492011-07-22 00:38:23 +00004388 QualType Parm = readType(*Loc.F, Record, Idx);
Douglas Gregorc3069d62011-01-14 02:55:32 +00004389 TemplateArgument ArgPack = ReadTemplateArgument(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004390 return Context.getSubstTemplateTypeParmPackType(
Douglas Gregorc3069d62011-01-14 02:55:32 +00004391 cast<TemplateTypeParmType>(Parm),
4392 ArgPack);
4393 }
4394
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004395 case TYPE_INJECTED_CLASS_NAME: {
Douglas Gregor409448c2011-07-21 22:35:25 +00004396 CXXRecordDecl *D = ReadDeclAs<CXXRecordDecl>(*Loc.F, Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00004397 QualType TST = readType(*Loc.F, Record, Idx); // probably derivable
Argyrios Kyrtzidis43921b52010-07-02 11:55:20 +00004398 // FIXME: ASTContext::getInjectedClassNameType is not currently suitable
Sebastian Redl3c7f4132010-08-18 23:57:06 +00004399 // for AST reading, too much interdependencies.
Argyrios Kyrtzidis43921b52010-07-02 11:55:20 +00004400 return
Douglas Gregor35942772011-09-09 21:34:22 +00004401 QualType(new (Context, TypeAlignment) InjectedClassNameType(D, TST), 0);
John McCall3cb0ebd2010-03-10 03:28:59 +00004402 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004403
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004404 case TYPE_TEMPLATE_TYPE_PARM: {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00004405 unsigned Idx = 0;
4406 unsigned Depth = Record[Idx++];
4407 unsigned Index = Record[Idx++];
4408 bool Pack = Record[Idx++];
Douglas Gregor409448c2011-07-21 22:35:25 +00004409 TemplateTypeParmDecl *D
4410 = ReadDeclAs<TemplateTypeParmDecl>(*Loc.F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00004411 return Context.getTemplateTypeParmType(Depth, Index, Pack, D);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00004412 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004413
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004414 case TYPE_DEPENDENT_NAME: {
Argyrios Kyrtzidis8dfbd8b2010-06-24 08:57:31 +00004415 unsigned Idx = 0;
4416 ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
Douglas Gregor409448c2011-07-21 22:35:25 +00004417 NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
Douglas Gregor95eab172011-07-28 20:55:49 +00004418 const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00004419 QualType Canon = readType(*Loc.F, Record, Idx);
Douglas Gregor32adc8b2010-10-26 00:51:02 +00004420 if (!Canon.isNull())
Douglas Gregor35942772011-09-09 21:34:22 +00004421 Canon = Context.getCanonicalType(Canon);
4422 return Context.getDependentNameType(Keyword, NNS, Name, Canon);
Argyrios Kyrtzidis8dfbd8b2010-06-24 08:57:31 +00004423 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004424
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004425 case TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION: {
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +00004426 unsigned Idx = 0;
4427 ElaboratedTypeKeyword Keyword = (ElaboratedTypeKeyword)Record[Idx++];
Douglas Gregor409448c2011-07-21 22:35:25 +00004428 NestedNameSpecifier *NNS = ReadNestedNameSpecifier(*Loc.F, Record, Idx);
Douglas Gregor95eab172011-07-28 20:55:49 +00004429 const IdentifierInfo *Name = this->GetIdentifierInfo(*Loc.F, Record, Idx);
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +00004430 unsigned NumArgs = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00004431 SmallVector<TemplateArgument, 8> Args;
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +00004432 Args.reserve(NumArgs);
4433 while (NumArgs--)
Sebastian Redlc3632732010-10-05 15:59:54 +00004434 Args.push_back(ReadTemplateArgument(*Loc.F, Record, Idx));
Douglas Gregor35942772011-09-09 21:34:22 +00004435 return Context.getDependentTemplateSpecializationType(Keyword, NNS, Name,
Argyrios Kyrtzidis3acad622010-06-25 16:24:58 +00004436 Args.size(), Args.data());
4437 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00004438
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004439 case TYPE_DEPENDENT_SIZED_ARRAY: {
Argyrios Kyrtzidisae8b17f2010-06-30 08:49:25 +00004440 unsigned Idx = 0;
4441
4442 // ArrayType
Douglas Gregor393f2492011-07-22 00:38:23 +00004443 QualType ElementType = readType(*Loc.F, Record, Idx);
Argyrios Kyrtzidisae8b17f2010-06-30 08:49:25 +00004444 ArrayType::ArraySizeModifier ASM
4445 = (ArrayType::ArraySizeModifier)Record[Idx++];
4446 unsigned IndexTypeQuals = Record[Idx++];
4447
4448 // DependentSizedArrayType
Sebastian Redlc3632732010-10-05 15:59:54 +00004449 Expr *NumElts = ReadExpr(*Loc.F);
4450 SourceRange Brackets = ReadSourceRange(*Loc.F, Record, Idx);
Argyrios Kyrtzidisae8b17f2010-06-30 08:49:25 +00004451
Douglas Gregor35942772011-09-09 21:34:22 +00004452 return Context.getDependentSizedArrayType(ElementType, NumElts, ASM,
Argyrios Kyrtzidisae8b17f2010-06-30 08:49:25 +00004453 IndexTypeQuals, Brackets);
4454 }
Argyrios Kyrtzidis90b715e2010-06-19 19:28:53 +00004455
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004456 case TYPE_TEMPLATE_SPECIALIZATION: {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00004457 unsigned Idx = 0;
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004458 bool IsDependent = Record[Idx++];
Douglas Gregor1aee05d2011-01-15 06:45:20 +00004459 TemplateName Name = ReadTemplateName(*Loc.F, Record, Idx);
Chris Lattner5f9e2722011-07-23 10:55:15 +00004460 SmallVector<TemplateArgument, 8> Args;
Sebastian Redlc3632732010-10-05 15:59:54 +00004461 ReadTemplateArgumentList(Args, *Loc.F, Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00004462 QualType Underlying = readType(*Loc.F, Record, Idx);
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004463 QualType T;
Richard Smith3e4c6c42011-05-05 21:57:07 +00004464 if (Underlying.isNull())
Douglas Gregor35942772011-09-09 21:34:22 +00004465 T = Context.getCanonicalTemplateSpecializationType(Name, Args.data(),
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004466 Args.size());
Argyrios Kyrtzidis9763e222010-07-02 11:55:11 +00004467 else
Douglas Gregor35942772011-09-09 21:34:22 +00004468 T = Context.getTemplateSpecializationType(Name, Args.data(),
Richard Smith3e4c6c42011-05-05 21:57:07 +00004469 Args.size(), Underlying);
John McCallf4c73712011-01-19 06:33:43 +00004470 const_cast<Type*>(T.getTypePtr())->setDependent(IsDependent);
Argyrios Kyrtzidisbe191102010-07-08 13:09:53 +00004471 return T;
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00004472 }
Eli Friedmanb001de72011-10-06 23:00:33 +00004473
4474 case TYPE_ATOMIC: {
4475 if (Record.size() != 1) {
4476 Error("Incorrect encoding of atomic type");
4477 return QualType();
4478 }
4479 QualType ValueType = readType(*Loc.F, Record, Idx);
4480 return Context.getAtomicType(ValueType);
4481 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00004482 }
David Blaikie7530c032012-01-17 06:56:22 +00004483 llvm_unreachable("Invalid TypeCode!");
Douglas Gregor2cf26342009-04-09 22:27:44 +00004484}
4485
Sebastian Redlc3632732010-10-05 15:59:54 +00004486class clang::TypeLocReader : public TypeLocVisitor<TypeLocReader> {
Sebastian Redlc43b54c2010-08-18 23:56:43 +00004487 ASTReader &Reader;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004488 ModuleFile &F;
Sebastian Redlc43b54c2010-08-18 23:56:43 +00004489 const ASTReader::RecordData &Record;
John McCalla1ee0c52009-10-16 21:56:05 +00004490 unsigned &Idx;
4491
Sebastian Redlc3632732010-10-05 15:59:54 +00004492 SourceLocation ReadSourceLocation(const ASTReader::RecordData &R,
4493 unsigned &I) {
4494 return Reader.ReadSourceLocation(F, R, I);
4495 }
4496
Douglas Gregor409448c2011-07-21 22:35:25 +00004497 template<typename T>
4498 T *ReadDeclAs(const ASTReader::RecordData &Record, unsigned &Idx) {
4499 return Reader.ReadDeclAs<T>(F, Record, Idx);
4500 }
4501
John McCalla1ee0c52009-10-16 21:56:05 +00004502public:
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004503 TypeLocReader(ASTReader &Reader, ModuleFile &F,
Sebastian Redlc43b54c2010-08-18 23:56:43 +00004504 const ASTReader::RecordData &Record, unsigned &Idx)
Benjamin Kramerfacde172012-06-06 17:32:50 +00004505 : Reader(Reader), F(F), Record(Record), Idx(Idx)
Sebastian Redlc3632732010-10-05 15:59:54 +00004506 { }
John McCalla1ee0c52009-10-16 21:56:05 +00004507
John McCall51bd8032009-10-18 01:05:36 +00004508 // We want compile-time assurance that we've enumerated all of
4509 // these, so unfortunately we have to declare them first, then
4510 // define them out-of-line.
4511#define ABSTRACT_TYPELOC(CLASS, PARENT)
John McCalla1ee0c52009-10-16 21:56:05 +00004512#define TYPELOC(CLASS, PARENT) \
John McCall51bd8032009-10-18 01:05:36 +00004513 void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
John McCalla1ee0c52009-10-16 21:56:05 +00004514#include "clang/AST/TypeLocNodes.def"
4515
John McCall51bd8032009-10-18 01:05:36 +00004516 void VisitFunctionTypeLoc(FunctionTypeLoc);
4517 void VisitArrayTypeLoc(ArrayTypeLoc);
John McCalla1ee0c52009-10-16 21:56:05 +00004518};
4519
John McCall51bd8032009-10-18 01:05:36 +00004520void TypeLocReader::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
John McCalla1ee0c52009-10-16 21:56:05 +00004521 // nothing to do
4522}
John McCall51bd8032009-10-18 01:05:36 +00004523void TypeLocReader::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004524 TL.setBuiltinLoc(ReadSourceLocation(Record, Idx));
Douglas Gregorddf889a2010-01-18 18:04:31 +00004525 if (TL.needsExtraLocalData()) {
4526 TL.setWrittenTypeSpec(static_cast<DeclSpec::TST>(Record[Idx++]));
4527 TL.setWrittenSignSpec(static_cast<DeclSpec::TSS>(Record[Idx++]));
4528 TL.setWrittenWidthSpec(static_cast<DeclSpec::TSW>(Record[Idx++]));
4529 TL.setModeAttr(Record[Idx++]);
4530 }
John McCalla1ee0c52009-10-16 21:56:05 +00004531}
John McCall51bd8032009-10-18 01:05:36 +00004532void TypeLocReader::VisitComplexTypeLoc(ComplexTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004533 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004534}
John McCall51bd8032009-10-18 01:05:36 +00004535void TypeLocReader::VisitPointerTypeLoc(PointerTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004536 TL.setStarLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004537}
John McCall51bd8032009-10-18 01:05:36 +00004538void TypeLocReader::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004539 TL.setCaretLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004540}
John McCall51bd8032009-10-18 01:05:36 +00004541void TypeLocReader::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004542 TL.setAmpLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004543}
John McCall51bd8032009-10-18 01:05:36 +00004544void TypeLocReader::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004545 TL.setAmpAmpLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004546}
John McCall51bd8032009-10-18 01:05:36 +00004547void TypeLocReader::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004548 TL.setStarLoc(ReadSourceLocation(Record, Idx));
Abramo Bagnarab6ab6c12011-03-05 14:42:21 +00004549 TL.setClassTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004550}
John McCall51bd8032009-10-18 01:05:36 +00004551void TypeLocReader::VisitArrayTypeLoc(ArrayTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004552 TL.setLBracketLoc(ReadSourceLocation(Record, Idx));
4553 TL.setRBracketLoc(ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004554 if (Record[Idx++])
Sebastian Redlc3632732010-10-05 15:59:54 +00004555 TL.setSizeExpr(Reader.ReadExpr(F));
Douglas Gregor61d60ee2009-10-17 00:13:19 +00004556 else
John McCall51bd8032009-10-18 01:05:36 +00004557 TL.setSizeExpr(0);
4558}
4559void TypeLocReader::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
4560 VisitArrayTypeLoc(TL);
4561}
4562void TypeLocReader::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
4563 VisitArrayTypeLoc(TL);
4564}
4565void TypeLocReader::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
4566 VisitArrayTypeLoc(TL);
4567}
4568void TypeLocReader::VisitDependentSizedArrayTypeLoc(
4569 DependentSizedArrayTypeLoc TL) {
4570 VisitArrayTypeLoc(TL);
4571}
4572void TypeLocReader::VisitDependentSizedExtVectorTypeLoc(
4573 DependentSizedExtVectorTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004574 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004575}
4576void TypeLocReader::VisitVectorTypeLoc(VectorTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004577 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004578}
4579void TypeLocReader::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004580 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004581}
4582void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
Abramo Bagnara796aa442011-03-12 11:17:06 +00004583 TL.setLocalRangeBegin(ReadSourceLocation(Record, Idx));
Abramo Bagnara59c0a812012-10-04 21:42:10 +00004584 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4585 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
Abramo Bagnara796aa442011-03-12 11:17:06 +00004586 TL.setLocalRangeEnd(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004587 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) {
Douglas Gregor409448c2011-07-21 22:35:25 +00004588 TL.setArg(i, ReadDeclAs<ParmVarDecl>(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004589 }
4590}
4591void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
4592 VisitFunctionTypeLoc(TL);
4593}
4594void TypeLocReader::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
4595 VisitFunctionTypeLoc(TL);
4596}
John McCalled976492009-12-04 22:46:56 +00004597void TypeLocReader::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004598 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCalled976492009-12-04 22:46:56 +00004599}
John McCall51bd8032009-10-18 01:05:36 +00004600void TypeLocReader::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004601 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004602}
4603void TypeLocReader::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004604 TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
4605 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4606 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004607}
4608void TypeLocReader::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004609 TL.setTypeofLoc(ReadSourceLocation(Record, Idx));
4610 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4611 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
4612 TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004613}
4614void TypeLocReader::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004615 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004616}
Sean Huntca63c202011-05-24 22:41:36 +00004617void TypeLocReader::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
4618 TL.setKWLoc(ReadSourceLocation(Record, Idx));
4619 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4620 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
4621 TL.setUnderlyingTInfo(Reader.GetTypeSourceInfo(F, Record, Idx));
4622}
Richard Smith34b41d92011-02-20 03:19:35 +00004623void TypeLocReader::VisitAutoTypeLoc(AutoTypeLoc TL) {
4624 TL.setNameLoc(ReadSourceLocation(Record, Idx));
4625}
John McCall51bd8032009-10-18 01:05:36 +00004626void TypeLocReader::VisitRecordTypeLoc(RecordTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004627 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004628}
4629void TypeLocReader::VisitEnumTypeLoc(EnumTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004630 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004631}
John McCall9d156a72011-01-06 01:58:22 +00004632void TypeLocReader::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
4633 TL.setAttrNameLoc(ReadSourceLocation(Record, Idx));
4634 if (TL.hasAttrOperand()) {
4635 SourceRange range;
4636 range.setBegin(ReadSourceLocation(Record, Idx));
4637 range.setEnd(ReadSourceLocation(Record, Idx));
4638 TL.setAttrOperandParensRange(range);
4639 }
4640 if (TL.hasAttrExprOperand()) {
4641 if (Record[Idx++])
4642 TL.setAttrExprOperand(Reader.ReadExpr(F));
4643 else
4644 TL.setAttrExprOperand(0);
4645 } else if (TL.hasAttrEnumOperand())
4646 TL.setAttrEnumOperandLoc(ReadSourceLocation(Record, Idx));
4647}
John McCall51bd8032009-10-18 01:05:36 +00004648void TypeLocReader::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004649 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004650}
John McCall49a832b2009-10-18 09:09:24 +00004651void TypeLocReader::VisitSubstTemplateTypeParmTypeLoc(
4652 SubstTemplateTypeParmTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004653 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall49a832b2009-10-18 09:09:24 +00004654}
Douglas Gregorc3069d62011-01-14 02:55:32 +00004655void TypeLocReader::VisitSubstTemplateTypeParmPackTypeLoc(
4656 SubstTemplateTypeParmPackTypeLoc TL) {
4657 TL.setNameLoc(ReadSourceLocation(Record, Idx));
4658}
John McCall51bd8032009-10-18 01:05:36 +00004659void TypeLocReader::VisitTemplateSpecializationTypeLoc(
4660 TemplateSpecializationTypeLoc TL) {
Abramo Bagnara55d23c92012-02-06 14:41:24 +00004661 TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
Sebastian Redlc3632732010-10-05 15:59:54 +00004662 TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
4663 TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
4664 TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
John McCall833ca992009-10-29 08:12:44 +00004665 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
4666 TL.setArgLocInfo(i,
Sebastian Redlc3632732010-10-05 15:59:54 +00004667 Reader.GetTemplateArgumentLocInfo(F,
4668 TL.getTypePtr()->getArg(i).getKind(),
4669 Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004670}
Abramo Bagnara075f8f12010-12-10 16:29:40 +00004671void TypeLocReader::VisitParenTypeLoc(ParenTypeLoc TL) {
4672 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4673 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
4674}
Abramo Bagnara465d41b2010-05-11 21:36:43 +00004675void TypeLocReader::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
Abramo Bagnara38a42912012-02-06 19:09:27 +00004676 TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
Douglas Gregor9e876872011-03-01 18:12:44 +00004677 TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004678}
John McCall3cb0ebd2010-03-10 03:28:59 +00004679void TypeLocReader::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004680 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall3cb0ebd2010-03-10 03:28:59 +00004681}
Douglas Gregor4714c122010-03-31 17:34:00 +00004682void TypeLocReader::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
Abramo Bagnara38a42912012-02-06 19:09:27 +00004683 TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
Douglas Gregor2494dd02011-03-01 01:34:45 +00004684 TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
Sebastian Redlc3632732010-10-05 15:59:54 +00004685 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004686}
John McCall33500952010-06-11 00:33:02 +00004687void TypeLocReader::VisitDependentTemplateSpecializationTypeLoc(
4688 DependentTemplateSpecializationTypeLoc TL) {
Abramo Bagnara55d23c92012-02-06 14:41:24 +00004689 TL.setElaboratedKeywordLoc(ReadSourceLocation(Record, Idx));
Douglas Gregor94fdffa2011-03-01 20:11:18 +00004690 TL.setQualifierLoc(Reader.ReadNestedNameSpecifierLoc(F, Record, Idx));
Abramo Bagnara66581d42012-02-06 22:45:07 +00004691 TL.setTemplateKeywordLoc(ReadSourceLocation(Record, Idx));
Abramo Bagnara55d23c92012-02-06 14:41:24 +00004692 TL.setTemplateNameLoc(ReadSourceLocation(Record, Idx));
Sebastian Redlc3632732010-10-05 15:59:54 +00004693 TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
4694 TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
John McCall33500952010-06-11 00:33:02 +00004695 for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
4696 TL.setArgLocInfo(I,
Sebastian Redlc3632732010-10-05 15:59:54 +00004697 Reader.GetTemplateArgumentLocInfo(F,
4698 TL.getTypePtr()->getArg(I).getKind(),
4699 Record, Idx));
John McCall33500952010-06-11 00:33:02 +00004700}
Douglas Gregor7536dd52010-12-20 02:24:11 +00004701void TypeLocReader::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
4702 TL.setEllipsisLoc(ReadSourceLocation(Record, Idx));
4703}
John McCall51bd8032009-10-18 01:05:36 +00004704void TypeLocReader::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004705 TL.setNameLoc(ReadSourceLocation(Record, Idx));
John McCallc12c5bb2010-05-15 11:32:37 +00004706}
4707void TypeLocReader::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
4708 TL.setHasBaseTypeAsWritten(Record[Idx++]);
Sebastian Redlc3632732010-10-05 15:59:54 +00004709 TL.setLAngleLoc(ReadSourceLocation(Record, Idx));
4710 TL.setRAngleLoc(ReadSourceLocation(Record, Idx));
John McCall51bd8032009-10-18 01:05:36 +00004711 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
Sebastian Redlc3632732010-10-05 15:59:54 +00004712 TL.setProtocolLoc(i, ReadSourceLocation(Record, Idx));
John McCalla1ee0c52009-10-16 21:56:05 +00004713}
John McCall54e14c42009-10-22 22:37:11 +00004714void TypeLocReader::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004715 TL.setStarLoc(ReadSourceLocation(Record, Idx));
John McCall54e14c42009-10-22 22:37:11 +00004716}
Eli Friedmanb001de72011-10-06 23:00:33 +00004717void TypeLocReader::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
4718 TL.setKWLoc(ReadSourceLocation(Record, Idx));
4719 TL.setLParenLoc(ReadSourceLocation(Record, Idx));
4720 TL.setRParenLoc(ReadSourceLocation(Record, Idx));
4721}
John McCalla1ee0c52009-10-16 21:56:05 +00004722
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004723TypeSourceInfo *ASTReader::GetTypeSourceInfo(ModuleFile &F,
Sebastian Redl577d4792010-07-22 22:43:28 +00004724 const RecordData &Record,
John McCalla1ee0c52009-10-16 21:56:05 +00004725 unsigned &Idx) {
Douglas Gregor393f2492011-07-22 00:38:23 +00004726 QualType InfoTy = readType(F, Record, Idx);
John McCalla1ee0c52009-10-16 21:56:05 +00004727 if (InfoTy.isNull())
4728 return 0;
4729
Douglas Gregor35942772011-09-09 21:34:22 +00004730 TypeSourceInfo *TInfo = getContext().CreateTypeSourceInfo(InfoTy);
Sebastian Redlc3632732010-10-05 15:59:54 +00004731 TypeLocReader TLR(*this, F, Record, Idx);
John McCalla93c9342009-12-07 02:54:59 +00004732 for (TypeLoc TL = TInfo->getTypeLoc(); !TL.isNull(); TL = TL.getNextTypeLoc())
John McCalla1ee0c52009-10-16 21:56:05 +00004733 TLR.Visit(TL);
John McCalla93c9342009-12-07 02:54:59 +00004734 return TInfo;
John McCalla1ee0c52009-10-16 21:56:05 +00004735}
Douglas Gregor2cf26342009-04-09 22:27:44 +00004736
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004737QualType ASTReader::GetType(TypeID ID) {
John McCall0953e762009-09-24 19:53:00 +00004738 unsigned FastQuals = ID & Qualifiers::FastMask;
4739 unsigned Index = ID >> Qualifiers::FastWidth;
Douglas Gregor2cf26342009-04-09 22:27:44 +00004740
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004741 if (Index < NUM_PREDEF_TYPE_IDS) {
Douglas Gregor2cf26342009-04-09 22:27:44 +00004742 QualType T;
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004743 switch ((PredefinedTypeIDs)Index) {
4744 case PREDEF_TYPE_NULL_ID: return QualType();
Douglas Gregor35942772011-09-09 21:34:22 +00004745 case PREDEF_TYPE_VOID_ID: T = Context.VoidTy; break;
4746 case PREDEF_TYPE_BOOL_ID: T = Context.BoolTy; break;
Douglas Gregor2cf26342009-04-09 22:27:44 +00004747
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004748 case PREDEF_TYPE_CHAR_U_ID:
4749 case PREDEF_TYPE_CHAR_S_ID:
Douglas Gregor2cf26342009-04-09 22:27:44 +00004750 // FIXME: Check that the signedness of CharTy is correct!
Douglas Gregor35942772011-09-09 21:34:22 +00004751 T = Context.CharTy;
Douglas Gregor2cf26342009-04-09 22:27:44 +00004752 break;
4753
Douglas Gregor35942772011-09-09 21:34:22 +00004754 case PREDEF_TYPE_UCHAR_ID: T = Context.UnsignedCharTy; break;
4755 case PREDEF_TYPE_USHORT_ID: T = Context.UnsignedShortTy; break;
4756 case PREDEF_TYPE_UINT_ID: T = Context.UnsignedIntTy; break;
4757 case PREDEF_TYPE_ULONG_ID: T = Context.UnsignedLongTy; break;
4758 case PREDEF_TYPE_ULONGLONG_ID: T = Context.UnsignedLongLongTy; break;
4759 case PREDEF_TYPE_UINT128_ID: T = Context.UnsignedInt128Ty; break;
4760 case PREDEF_TYPE_SCHAR_ID: T = Context.SignedCharTy; break;
4761 case PREDEF_TYPE_WCHAR_ID: T = Context.WCharTy; break;
4762 case PREDEF_TYPE_SHORT_ID: T = Context.ShortTy; break;
4763 case PREDEF_TYPE_INT_ID: T = Context.IntTy; break;
4764 case PREDEF_TYPE_LONG_ID: T = Context.LongTy; break;
4765 case PREDEF_TYPE_LONGLONG_ID: T = Context.LongLongTy; break;
4766 case PREDEF_TYPE_INT128_ID: T = Context.Int128Ty; break;
Anton Korobeynikovaa4a99b2011-10-14 23:23:15 +00004767 case PREDEF_TYPE_HALF_ID: T = Context.HalfTy; break;
Douglas Gregor35942772011-09-09 21:34:22 +00004768 case PREDEF_TYPE_FLOAT_ID: T = Context.FloatTy; break;
4769 case PREDEF_TYPE_DOUBLE_ID: T = Context.DoubleTy; break;
4770 case PREDEF_TYPE_LONGDOUBLE_ID: T = Context.LongDoubleTy; break;
4771 case PREDEF_TYPE_OVERLOAD_ID: T = Context.OverloadTy; break;
4772 case PREDEF_TYPE_BOUND_MEMBER: T = Context.BoundMemberTy; break;
John McCall3c3b7f92011-10-25 17:37:35 +00004773 case PREDEF_TYPE_PSEUDO_OBJECT: T = Context.PseudoObjectTy; break;
Douglas Gregor35942772011-09-09 21:34:22 +00004774 case PREDEF_TYPE_DEPENDENT_ID: T = Context.DependentTy; break;
4775 case PREDEF_TYPE_UNKNOWN_ANY: T = Context.UnknownAnyTy; break;
4776 case PREDEF_TYPE_NULLPTR_ID: T = Context.NullPtrTy; break;
4777 case PREDEF_TYPE_CHAR16_ID: T = Context.Char16Ty; break;
4778 case PREDEF_TYPE_CHAR32_ID: T = Context.Char32Ty; break;
4779 case PREDEF_TYPE_OBJC_ID: T = Context.ObjCBuiltinIdTy; break;
4780 case PREDEF_TYPE_OBJC_CLASS: T = Context.ObjCBuiltinClassTy; break;
4781 case PREDEF_TYPE_OBJC_SEL: T = Context.ObjCBuiltinSelTy; break;
4782 case PREDEF_TYPE_AUTO_DEDUCT: T = Context.getAutoDeductType(); break;
Douglas Gregor3b8043b2011-08-09 15:13:55 +00004783
4784 case PREDEF_TYPE_AUTO_RREF_DEDUCT:
Douglas Gregor35942772011-09-09 21:34:22 +00004785 T = Context.getAutoRRefDeductType();
Douglas Gregor3b8043b2011-08-09 15:13:55 +00004786 break;
John McCall0ddaeb92011-10-17 18:09:15 +00004787
4788 case PREDEF_TYPE_ARC_UNBRIDGED_CAST:
4789 T = Context.ARCUnbridgedCastTy;
4790 break;
4791
Meador Ingefb40e3f2012-07-01 15:57:25 +00004792 case PREDEF_TYPE_VA_LIST_TAG:
4793 T = Context.getVaListTagType();
4794 break;
Eli Friedmana6c66ce2012-08-31 00:14:07 +00004795
4796 case PREDEF_TYPE_BUILTIN_FN:
4797 T = Context.BuiltinFnTy;
4798 break;
Douglas Gregor2cf26342009-04-09 22:27:44 +00004799 }
4800
4801 assert(!T.isNull() && "Unknown predefined type");
John McCall0953e762009-09-24 19:53:00 +00004802 return T.withFastQualifiers(FastQuals);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004803 }
4804
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004805 Index -= NUM_PREDEF_TYPE_IDS;
Sebastian Redlaaec0aa2010-07-20 22:37:49 +00004806 assert(Index < TypesLoaded.size() && "Type index out-of-range");
Sebastian Redl07a353c2010-07-14 20:26:45 +00004807 if (TypesLoaded[Index].isNull()) {
Douglas Gregor393f2492011-07-22 00:38:23 +00004808 TypesLoaded[Index] = readTypeRecord(Index);
Douglas Gregor97475832010-10-05 18:37:06 +00004809 if (TypesLoaded[Index].isNull())
4810 return QualType();
4811
Sebastian Redl3c7f4132010-08-18 23:57:06 +00004812 TypesLoaded[Index]->setFromAST();
Sebastian Redl30c514c2010-07-14 23:45:08 +00004813 if (DeserializationListener)
Argyrios Kyrtzidisc8e5d512010-08-20 16:03:59 +00004814 DeserializationListener->TypeRead(TypeIdx::fromTypeID(ID),
Sebastian Redl1476ed42010-07-16 16:36:56 +00004815 TypesLoaded[Index]);
Sebastian Redl07a353c2010-07-14 20:26:45 +00004816 }
Mike Stump1eb44332009-09-09 15:08:12 +00004817
John McCall0953e762009-09-24 19:53:00 +00004818 return TypesLoaded[Index].withFastQualifiers(FastQuals);
Douglas Gregor2cf26342009-04-09 22:27:44 +00004819}
4820
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004821QualType ASTReader::getLocalType(ModuleFile &F, unsigned LocalID) {
Douglas Gregor393f2492011-07-22 00:38:23 +00004822 return GetType(getGlobalTypeID(F, LocalID));
4823}
4824
4825serialization::TypeID
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004826ASTReader::getGlobalTypeID(ModuleFile &F, unsigned LocalID) const {
Douglas Gregora119da02011-08-02 16:26:37 +00004827 unsigned FastQuals = LocalID & Qualifiers::FastMask;
4828 unsigned LocalIndex = LocalID >> Qualifiers::FastWidth;
4829
4830 if (LocalIndex < NUM_PREDEF_TYPE_IDS)
4831 return LocalID;
4832
4833 ContinuousRangeMap<uint32_t, int, 2>::iterator I
4834 = F.TypeRemap.find(LocalIndex - NUM_PREDEF_TYPE_IDS);
4835 assert(I != F.TypeRemap.end() && "Invalid index into type index remap");
4836
4837 unsigned GlobalIndex = LocalIndex + I->second;
4838 return (GlobalIndex << Qualifiers::FastWidth) | FastQuals;
4839}
4840
John McCall833ca992009-10-29 08:12:44 +00004841TemplateArgumentLocInfo
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004842ASTReader::GetTemplateArgumentLocInfo(ModuleFile &F,
Sebastian Redlc3632732010-10-05 15:59:54 +00004843 TemplateArgument::ArgKind Kind,
John McCall833ca992009-10-29 08:12:44 +00004844 const RecordData &Record,
Argyrios Kyrtzidis919e6932010-06-28 22:28:35 +00004845 unsigned &Index) {
John McCall833ca992009-10-29 08:12:44 +00004846 switch (Kind) {
4847 case TemplateArgument::Expression:
Sebastian Redlc3632732010-10-05 15:59:54 +00004848 return ReadExpr(F);
John McCall833ca992009-10-29 08:12:44 +00004849 case TemplateArgument::Type:
Sebastian Redlc3632732010-10-05 15:59:54 +00004850 return GetTypeSourceInfo(F, Record, Index);
Douglas Gregor788cd062009-11-11 01:00:40 +00004851 case TemplateArgument::Template: {
Douglas Gregorb6744ef2011-03-02 17:09:35 +00004852 NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
4853 Index);
Sebastian Redlc3632732010-10-05 15:59:54 +00004854 SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
Douglas Gregorb6744ef2011-03-02 17:09:35 +00004855 return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
Douglas Gregora7fc9012011-01-05 18:58:31 +00004856 SourceLocation());
4857 }
4858 case TemplateArgument::TemplateExpansion: {
Douglas Gregorb6744ef2011-03-02 17:09:35 +00004859 NestedNameSpecifierLoc QualifierLoc = ReadNestedNameSpecifierLoc(F, Record,
4860 Index);
Douglas Gregora7fc9012011-01-05 18:58:31 +00004861 SourceLocation TemplateNameLoc = ReadSourceLocation(F, Record, Index);
Douglas Gregorba68eca2011-01-05 17:40:24 +00004862 SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Index);
Douglas Gregorb6744ef2011-03-02 17:09:35 +00004863 return TemplateArgumentLocInfo(QualifierLoc, TemplateNameLoc,
Douglas Gregorba68eca2011-01-05 17:40:24 +00004864 EllipsisLoc);
Douglas Gregor788cd062009-11-11 01:00:40 +00004865 }
John McCall833ca992009-10-29 08:12:44 +00004866 case TemplateArgument::Null:
4867 case TemplateArgument::Integral:
4868 case TemplateArgument::Declaration:
Eli Friedmand7a6b162012-09-26 02:36:12 +00004869 case TemplateArgument::NullPtr:
John McCall833ca992009-10-29 08:12:44 +00004870 case TemplateArgument::Pack:
Eli Friedmand7a6b162012-09-26 02:36:12 +00004871 // FIXME: Is this right?
John McCall833ca992009-10-29 08:12:44 +00004872 return TemplateArgumentLocInfo();
4873 }
Jeffrey Yasskin9f61aa92009-12-12 05:05:38 +00004874 llvm_unreachable("unexpected template argument loc");
John McCall833ca992009-10-29 08:12:44 +00004875}
4876
Argyrios Kyrtzidis17cfded2010-06-28 09:31:42 +00004877TemplateArgumentLoc
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004878ASTReader::ReadTemplateArgumentLoc(ModuleFile &F,
Sebastian Redl577d4792010-07-22 22:43:28 +00004879 const RecordData &Record, unsigned &Index) {
Sebastian Redlc3632732010-10-05 15:59:54 +00004880 TemplateArgument Arg = ReadTemplateArgument(F, Record, Index);
Argyrios Kyrtzidis17cfded2010-06-28 09:31:42 +00004881
4882 if (Arg.getKind() == TemplateArgument::Expression) {
4883 if (Record[Index++]) // bool InfoHasSameExpr.
4884 return TemplateArgumentLoc(Arg, TemplateArgumentLocInfo(Arg.getAsExpr()));
4885 }
Sebastian Redlc3632732010-10-05 15:59:54 +00004886 return TemplateArgumentLoc(Arg, GetTemplateArgumentLocInfo(F, Arg.getKind(),
Argyrios Kyrtzidis919e6932010-06-28 22:28:35 +00004887 Record, Index));
Argyrios Kyrtzidis44f8c372010-06-22 09:54:59 +00004888}
4889
Sebastian Redlc43b54c2010-08-18 23:56:43 +00004890Decl *ASTReader::GetExternalDecl(uint32_t ID) {
John McCall76bd1f32010-06-01 09:23:16 +00004891 return GetDecl(ID);
4892}
4893
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004894uint64_t ASTReader::readCXXBaseSpecifiers(ModuleFile &M, const RecordData &Record,
Douglas Gregore92b8a12011-08-04 00:01:48 +00004895 unsigned &Idx){
4896 if (Idx >= Record.size())
Douglas Gregor7c789c12010-10-29 22:39:52 +00004897 return 0;
Douglas Gregor7c789c12010-10-29 22:39:52 +00004898
Douglas Gregore92b8a12011-08-04 00:01:48 +00004899 unsigned LocalID = Record[Idx++];
4900 return getGlobalBitOffset(M, M.CXXBaseSpecifiersOffsets[LocalID - 1]);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004901}
4902
4903CXXBaseSpecifier *ASTReader::GetExternalCXXBaseSpecifiers(uint64_t Offset) {
Douglas Gregor8f1231b2011-07-22 06:10:01 +00004904 RecordLocation Loc = getLocalBitOffset(Offset);
4905 llvm::BitstreamCursor &Cursor = Loc.F->DeclsCursor;
Douglas Gregor7c789c12010-10-29 22:39:52 +00004906 SavedStreamPosition SavedPosition(Cursor);
Douglas Gregor8f1231b2011-07-22 06:10:01 +00004907 Cursor.JumpToBit(Loc.Offset);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004908 ReadingKindTracker ReadingKind(Read_Decl, *this);
4909 RecordData Record;
4910 unsigned Code = Cursor.ReadCode();
4911 unsigned RecCode = Cursor.ReadRecord(Code, Record);
4912 if (RecCode != DECL_CXX_BASE_SPECIFIERS) {
4913 Error("Malformed AST file: missing C++ base specifiers");
4914 return 0;
4915 }
4916
4917 unsigned Idx = 0;
4918 unsigned NumBases = Record[Idx++];
Douglas Gregor35942772011-09-09 21:34:22 +00004919 void *Mem = Context.Allocate(sizeof(CXXBaseSpecifier) * NumBases);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004920 CXXBaseSpecifier *Bases = new (Mem) CXXBaseSpecifier [NumBases];
4921 for (unsigned I = 0; I != NumBases; ++I)
Douglas Gregor8f1231b2011-07-22 06:10:01 +00004922 Bases[I] = ReadCXXBaseSpecifier(*Loc.F, Record, Idx);
Douglas Gregor7c789c12010-10-29 22:39:52 +00004923 return Bases;
4924}
4925
Douglas Gregor409448c2011-07-21 22:35:25 +00004926serialization::DeclID
Argyrios Kyrtzidis2093e0b2012-10-02 21:09:13 +00004927ASTReader::getGlobalDeclID(ModuleFile &F, LocalDeclID LocalID) const {
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00004928 if (LocalID < NUM_PREDEF_DECL_IDS)
Douglas Gregor496c7092011-08-03 15:48:04 +00004929 return LocalID;
4930
4931 ContinuousRangeMap<uint32_t, int, 2>::iterator I
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00004932 = F.DeclRemap.find(LocalID - NUM_PREDEF_DECL_IDS);
Douglas Gregor496c7092011-08-03 15:48:04 +00004933 assert(I != F.DeclRemap.end() && "Invalid index into decl index remap");
4934
4935 return LocalID + I->second;
Douglas Gregor409448c2011-07-21 22:35:25 +00004936}
4937
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00004938bool ASTReader::isDeclIDFromModule(serialization::GlobalDeclID ID,
Douglas Gregor1a4761e2011-11-30 23:21:26 +00004939 ModuleFile &M) const {
Argyrios Kyrtzidise6b8d682011-09-01 00:58:55 +00004940 GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(ID);
4941 assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
4942 return &M == I->second;
4943}
4944
Douglas Gregorcff9f262012-01-27 01:47:08 +00004945ModuleFile *ASTReader::getOwningModuleFile(Decl *D) {
4946 if (!D->isFromASTFile())
4947 return 0;
4948 GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(D->getGlobalID());
4949 assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
4950 return I->second;
4951}
4952
Argyrios Kyrtzidisdfb332d2011-11-03 02:20:32 +00004953SourceLocation ASTReader::getSourceLocationForDeclID(GlobalDeclID ID) {
4954 if (ID < NUM_PREDEF_DECL_IDS)
4955 return SourceLocation();
4956
4957 unsigned Index = ID - NUM_PREDEF_DECL_IDS;
4958
4959 if (Index > DeclsLoaded.size()) {
4960 Error("declaration ID out-of-range for AST file");
4961 return SourceLocation();
4962 }
4963
4964 if (Decl *D = DeclsLoaded[Index])
4965 return D->getLocation();
4966
4967 unsigned RawLocation = 0;
4968 RecordLocation Rec = DeclCursorForID(ID, RawLocation);
4969 return ReadSourceLocation(*Rec.F, RawLocation);
4970}
4971
Sebastian Redl8538e8d2010-08-18 23:57:32 +00004972Decl *ASTReader::GetDecl(DeclID ID) {
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00004973 if (ID < NUM_PREDEF_DECL_IDS) {
4974 switch ((PredefinedDeclIDs)ID) {
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00004975 case PREDEF_DECL_NULL_ID:
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00004976 return 0;
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00004977
4978 case PREDEF_DECL_TRANSLATION_UNIT_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004979 return Context.getTranslationUnitDecl();
Douglas Gregor4dfd02a2011-08-12 05:46:01 +00004980
4981 case PREDEF_DECL_OBJC_ID_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004982 return Context.getObjCIdDecl();
Douglas Gregor79d67262011-08-12 05:59:41 +00004983
Douglas Gregor7a27ea52011-08-12 06:17:30 +00004984 case PREDEF_DECL_OBJC_SEL_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004985 return Context.getObjCSelDecl();
Douglas Gregor7a27ea52011-08-12 06:17:30 +00004986
Douglas Gregor79d67262011-08-12 05:59:41 +00004987 case PREDEF_DECL_OBJC_CLASS_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004988 return Context.getObjCClassDecl();
Douglas Gregor772eeae2011-08-12 06:49:56 +00004989
Douglas Gregora6ea10e2012-01-17 18:09:05 +00004990 case PREDEF_DECL_OBJC_PROTOCOL_ID:
4991 return Context.getObjCProtocolDecl();
4992
Douglas Gregor772eeae2011-08-12 06:49:56 +00004993 case PREDEF_DECL_INT_128_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004994 return Context.getInt128Decl();
Douglas Gregor772eeae2011-08-12 06:49:56 +00004995
4996 case PREDEF_DECL_UNSIGNED_INT_128_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00004997 return Context.getUInt128Decl();
Douglas Gregore97179c2011-09-08 01:46:34 +00004998
4999 case PREDEF_DECL_OBJC_INSTANCETYPE_ID:
Douglas Gregor35942772011-09-09 21:34:22 +00005000 return Context.getObjCInstanceTypeDecl();
Meador Ingec5613b22012-06-16 03:34:49 +00005001
5002 case PREDEF_DECL_BUILTIN_VA_LIST_ID:
5003 return Context.getBuiltinVaListDecl();
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00005004 }
Douglas Gregor0a14e4b2011-08-03 16:05:40 +00005005 }
5006
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00005007 unsigned Index = ID - NUM_PREDEF_DECL_IDS;
5008
Richard Smith2fbf3732011-12-20 04:39:57 +00005009 if (Index >= DeclsLoaded.size()) {
Argyrios Kyrtzidis7518b372012-07-02 19:19:01 +00005010 assert(0 && "declaration ID out-of-range for AST file");
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005011 Error("declaration ID out-of-range for AST file");
Argyrios Kyrtzidis7518b372012-07-02 19:19:01 +00005012 return 0;
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00005013 }
Douglas Gregor6bf2b9f2011-08-12 00:15:20 +00005014
Douglas Gregorfd002a72011-12-16 22:37:11 +00005015 if (!DeclsLoaded[Index]) {
Douglas Gregor496c7092011-08-03 15:48:04 +00005016 ReadDeclRecord(ID);
Sebastian Redl30c514c2010-07-14 23:45:08 +00005017 if (DeserializationListener)
5018 DeserializationListener->DeclRead(ID, DeclsLoaded[Index]);
5019 }
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00005020
5021 return DeclsLoaded[Index];
Douglas Gregor2cf26342009-04-09 22:27:44 +00005022}
5023
Douglas Gregora1be2782011-12-17 23:38:30 +00005024DeclID ASTReader::mapGlobalIDToModuleFileGlobalID(ModuleFile &M,
5025 DeclID GlobalID) {
5026 if (GlobalID < NUM_PREDEF_DECL_IDS)
5027 return GlobalID;
5028
5029 GlobalDeclMapType::const_iterator I = GlobalDeclMap.find(GlobalID);
5030 assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
5031 ModuleFile *Owner = I->second;
5032
5033 llvm::DenseMap<ModuleFile *, serialization::DeclID>::iterator Pos
5034 = M.GlobalToLocalDeclIDs.find(Owner);
5035 if (Pos == M.GlobalToLocalDeclIDs.end())
5036 return 0;
5037
5038 return GlobalID - Owner->BaseDeclID + Pos->second;
5039}
5040
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005041serialization::DeclID ASTReader::ReadDeclID(ModuleFile &F,
Douglas Gregor409448c2011-07-21 22:35:25 +00005042 const RecordData &Record,
5043 unsigned &Idx) {
5044 if (Idx >= Record.size()) {
5045 Error("Corrupted AST file");
5046 return 0;
5047 }
5048
5049 return getGlobalDeclID(F, Record[Idx++]);
5050}
5051
Chris Lattner887e2b32009-04-27 05:46:25 +00005052/// \brief Resolve the offset of a statement into a statement.
5053///
5054/// This operation will read a new statement from the external
5055/// source each time it is called, and is meant to be used via a
5056/// LazyOffsetPtr (which is used by Decls for the body of functions, etc).
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005057Stmt *ASTReader::GetExternalDeclStmt(uint64_t Offset) {
Argyrios Kyrtzidise09a2752010-10-28 09:29:32 +00005058 // Switch case IDs are per Decl.
5059 ClearSwitchCaseIDs();
5060
Sebastian Redl0fa7d0b2010-07-22 17:01:13 +00005061 // Offset here is a global offset across the entire chain.
Douglas Gregor8f1231b2011-07-22 06:10:01 +00005062 RecordLocation Loc = getLocalBitOffset(Offset);
5063 Loc.F->DeclsCursor.JumpToBit(Loc.Offset);
5064 return ReadStmtFromStream(*Loc.F);
Douglas Gregor250fc9c2009-04-18 00:07:54 +00005065}
5066
Douglas Gregor851c75a2011-08-24 21:27:34 +00005067namespace {
5068 class FindExternalLexicalDeclsVisitor {
5069 ASTReader &Reader;
5070 const DeclContext *DC;
5071 bool (*isKindWeWant)(Decl::Kind);
Douglas Gregor2ea054f2011-08-26 22:04:51 +00005072
Douglas Gregor851c75a2011-08-24 21:27:34 +00005073 SmallVectorImpl<Decl*> &Decls;
5074 bool PredefsVisited[NUM_PREDEF_DECL_IDS];
5075
5076 public:
5077 FindExternalLexicalDeclsVisitor(ASTReader &Reader, const DeclContext *DC,
5078 bool (*isKindWeWant)(Decl::Kind),
5079 SmallVectorImpl<Decl*> &Decls)
5080 : Reader(Reader), DC(DC), isKindWeWant(isKindWeWant), Decls(Decls)
5081 {
5082 for (unsigned I = 0; I != NUM_PREDEF_DECL_IDS; ++I)
5083 PredefsVisited[I] = false;
5084 }
5085
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005086 static bool visit(ModuleFile &M, bool Preorder, void *UserData) {
Douglas Gregor851c75a2011-08-24 21:27:34 +00005087 if (Preorder)
5088 return false;
5089
5090 FindExternalLexicalDeclsVisitor *This
5091 = static_cast<FindExternalLexicalDeclsVisitor *>(UserData);
5092
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005093 ModuleFile::DeclContextInfosMap::iterator Info
Douglas Gregor851c75a2011-08-24 21:27:34 +00005094 = M.DeclContextInfos.find(This->DC);
5095 if (Info == M.DeclContextInfos.end() || !Info->second.LexicalDecls)
5096 return false;
5097
5098 // Load all of the declaration IDs
5099 for (const KindDeclIDPair *ID = Info->second.LexicalDecls,
5100 *IDE = ID + Info->second.NumLexicalDecls;
5101 ID != IDE; ++ID) {
5102 if (This->isKindWeWant && !This->isKindWeWant((Decl::Kind)ID->first))
5103 continue;
5104
5105 // Don't add predefined declarations to the lexical context more
5106 // than once.
5107 if (ID->second < NUM_PREDEF_DECL_IDS) {
5108 if (This->PredefsVisited[ID->second])
5109 continue;
5110
5111 This->PredefsVisited[ID->second] = true;
5112 }
5113
Douglas Gregor2ea054f2011-08-26 22:04:51 +00005114 if (Decl *D = This->Reader.GetLocalDecl(M, ID->second)) {
5115 if (!This->DC->isDeclInLexicalTraversal(D))
5116 This->Decls.push_back(D);
5117 }
Douglas Gregor851c75a2011-08-24 21:27:34 +00005118 }
5119
5120 return false;
5121 }
5122 };
5123}
5124
Douglas Gregorba6ffaf2011-07-15 21:46:17 +00005125ExternalLoadResult ASTReader::FindExternalLexicalDecls(const DeclContext *DC,
Argyrios Kyrtzidiseb5e9982010-10-14 20:14:34 +00005126 bool (*isKindWeWant)(Decl::Kind),
Chris Lattner5f9e2722011-07-23 10:55:15 +00005127 SmallVectorImpl<Decl*> &Decls) {
Douglas Gregor0d95f772011-08-24 19:03:07 +00005128 // There might be lexical decls in multiple modules, for the TU at
Douglas Gregor851c75a2011-08-24 21:27:34 +00005129 // least. Walk all of the modules in the order they were loaded.
5130 FindExternalLexicalDeclsVisitor Visitor(*this, DC, isKindWeWant, Decls);
5131 ModuleMgr.visitDepthFirst(&FindExternalLexicalDeclsVisitor::visit, &Visitor);
Douglas Gregor25123082009-04-22 22:34:57 +00005132 ++NumLexicalDeclContextsRead;
Douglas Gregorba6ffaf2011-07-15 21:46:17 +00005133 return ELR_Success;
Douglas Gregor2cf26342009-04-09 22:27:44 +00005134}
5135
Douglas Gregor0d95f772011-08-24 19:03:07 +00005136namespace {
Argyrios Kyrtzidisdfb332d2011-11-03 02:20:32 +00005137
5138class DeclIDComp {
5139 ASTReader &Reader;
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005140 ModuleFile &Mod;
Argyrios Kyrtzidisdfb332d2011-11-03 02:20:32 +00005141
5142public:
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005143 DeclIDComp(ASTReader &Reader, ModuleFile &M) : Reader(Reader), Mod(M) {}
Argyrios Kyrtzidisdfb332d2011-11-03 02:20:32 +00005144
5145 bool operator()(LocalDeclID L, LocalDeclID R) const {
5146 SourceLocation LHS = getLocation(L);
5147 SourceLocation RHS = getLocation(R);
5148 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
5149 }
5150
5151 bool operator()(SourceLocation LHS, LocalDeclID R) const {
5152 SourceLocation RHS = getLocation(R);
5153 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
5154 }
5155
5156 bool operator()(LocalDeclID L, SourceLocation RHS) const {
5157 SourceLocation LHS = getLocation(L);
5158 return Reader.getSourceManager().isBeforeInTranslationUnit(LHS, RHS);
5159 }
5160
5161 SourceLocation getLocation(LocalDeclID ID) const {
5162 return Reader.getSourceManager().getFileLoc(
5163 Reader.getSourceLocationForDeclID(Reader.getGlobalDeclID(Mod, ID)));
5164 }
5165};
5166
5167}
5168
5169void ASTReader::FindFileRegionDecls(FileID File,
5170 unsigned Offset, unsigned Length,
5171 SmallVectorImpl<Decl *> &Decls) {
5172 SourceManager &SM = getSourceManager();
5173
5174 llvm::DenseMap<FileID, FileDeclsInfo>::iterator I = FileDeclIDs.find(File);
5175 if (I == FileDeclIDs.end())
5176 return;
5177
5178 FileDeclsInfo &DInfo = I->second;
5179 if (DInfo.Decls.empty())
5180 return;
5181
5182 SourceLocation
5183 BeginLoc = SM.getLocForStartOfFile(File).getLocWithOffset(Offset);
5184 SourceLocation EndLoc = BeginLoc.getLocWithOffset(Length);
5185
5186 DeclIDComp DIDComp(*this, *DInfo.Mod);
5187 ArrayRef<serialization::LocalDeclID>::iterator
5188 BeginIt = std::lower_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
5189 BeginLoc, DIDComp);
5190 if (BeginIt != DInfo.Decls.begin())
5191 --BeginIt;
5192
Argyrios Kyrtzidisc14a03d2011-11-23 20:27:36 +00005193 // If we are pointing at a top-level decl inside an objc container, we need
5194 // to backtrack until we find it otherwise we will fail to report that the
5195 // region overlaps with an objc container.
5196 while (BeginIt != DInfo.Decls.begin() &&
5197 GetDecl(getGlobalDeclID(*DInfo.Mod, *BeginIt))
5198 ->isTopLevelDeclInObjCContainer())
5199 --BeginIt;
5200
Argyrios Kyrtzidisdfb332d2011-11-03 02:20:32 +00005201 ArrayRef<serialization::LocalDeclID>::iterator
5202 EndIt = std::upper_bound(DInfo.Decls.begin(), DInfo.Decls.end(),
5203 EndLoc, DIDComp);
5204 if (EndIt != DInfo.Decls.end())
5205 ++EndIt;
5206
5207 for (ArrayRef<serialization::LocalDeclID>::iterator
5208 DIt = BeginIt; DIt != EndIt; ++DIt)
5209 Decls.push_back(GetDecl(getGlobalDeclID(*DInfo.Mod, *DIt)));
5210}
5211
5212namespace {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005213 /// \brief ModuleFile visitor used to perform name lookup into a
Douglas Gregor0d95f772011-08-24 19:03:07 +00005214 /// declaration context.
5215 class DeclContextNameLookupVisitor {
5216 ASTReader &Reader;
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005217 llvm::SmallVectorImpl<const DeclContext *> &Contexts;
Douglas Gregor0d95f772011-08-24 19:03:07 +00005218 DeclarationName Name;
5219 SmallVectorImpl<NamedDecl *> &Decls;
5220
5221 public:
5222 DeclContextNameLookupVisitor(ASTReader &Reader,
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005223 SmallVectorImpl<const DeclContext *> &Contexts,
5224 DeclarationName Name,
Douglas Gregor0d95f772011-08-24 19:03:07 +00005225 SmallVectorImpl<NamedDecl *> &Decls)
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005226 : Reader(Reader), Contexts(Contexts), Name(Name), Decls(Decls) { }
Douglas Gregor0d95f772011-08-24 19:03:07 +00005227
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005228 static bool visit(ModuleFile &M, void *UserData) {
Douglas Gregor0d95f772011-08-24 19:03:07 +00005229 DeclContextNameLookupVisitor *This
5230 = static_cast<DeclContextNameLookupVisitor *>(UserData);
5231
5232 // Check whether we have any visible declaration information for
5233 // this context in this module.
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005234 ModuleFile::DeclContextInfosMap::iterator Info;
5235 bool FoundInfo = false;
5236 for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
5237 Info = M.DeclContextInfos.find(This->Contexts[I]);
5238 if (Info != M.DeclContextInfos.end() &&
5239 Info->second.NameLookupTableData) {
5240 FoundInfo = true;
5241 break;
5242 }
5243 }
Douglas Gregor0d95f772011-08-24 19:03:07 +00005244
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005245 if (!FoundInfo)
5246 return false;
5247
Douglas Gregor0d95f772011-08-24 19:03:07 +00005248 // Look for this name within this module.
5249 ASTDeclContextNameLookupTable *LookupTable =
Benjamin Kramerb1758c62012-04-15 12:36:49 +00005250 Info->second.NameLookupTableData;
Douglas Gregor0d95f772011-08-24 19:03:07 +00005251 ASTDeclContextNameLookupTable::iterator Pos
5252 = LookupTable->find(This->Name);
5253 if (Pos == LookupTable->end())
5254 return false;
5255
5256 bool FoundAnything = false;
5257 ASTDeclContextNameLookupTrait::data_type Data = *Pos;
5258 for (; Data.first != Data.second; ++Data.first) {
5259 NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M, *Data.first);
5260 if (!ND)
5261 continue;
5262
5263 if (ND->getDeclName() != This->Name) {
Axel Naumann3dd82f72012-10-01 09:51:27 +00005264 // A name might be null because the decl's redeclarable part is
5265 // currently read before reading its name. The lookup is triggered by
5266 // building that decl (likely indirectly), and so it is later in the
5267 // sense of "already existing" and can be ignored here.
Douglas Gregor0d95f772011-08-24 19:03:07 +00005268 continue;
5269 }
5270
5271 // Record this declaration.
5272 FoundAnything = true;
5273 This->Decls.push_back(ND);
5274 }
5275
5276 return FoundAnything;
5277 }
5278 };
5279}
5280
John McCall76bd1f32010-06-01 09:23:16 +00005281DeclContext::lookup_result
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005282ASTReader::FindExternalVisibleDeclsByName(const DeclContext *DC,
John McCall76bd1f32010-06-01 09:23:16 +00005283 DeclarationName Name) {
Mike Stump1eb44332009-09-09 15:08:12 +00005284 assert(DC->hasExternalVisibleStorage() &&
Douglas Gregor2cf26342009-04-09 22:27:44 +00005285 "DeclContext has no visible decls in storage");
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00005286 if (!Name)
5287 return DeclContext::lookup_result(DeclContext::lookup_iterator(0),
5288 DeclContext::lookup_iterator(0));
Ted Kremenekd5d7b3f2010-03-18 00:56:54 +00005289
Chris Lattner5f9e2722011-07-23 10:55:15 +00005290 SmallVector<NamedDecl *, 64> Decls;
Douglas Gregorc6c8e0e2012-01-09 17:30:44 +00005291
5292 // Compute the declaration contexts we need to look into. Multiple such
5293 // declaration contexts occur when two declaration contexts from disjoint
5294 // modules get merged, e.g., when two namespaces with the same name are
5295 // independently defined in separate modules.
5296 SmallVector<const DeclContext *, 2> Contexts;
5297 Contexts.push_back(DC);
5298
5299 if (DC->isNamespace()) {
5300 MergedDeclsMap::iterator Merged
5301 = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
5302 if (Merged != MergedDecls.end()) {
5303 for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
5304 Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
5305 }
5306 }
5307
5308 DeclContextNameLookupVisitor Visitor(*this, Contexts, Name, Decls);
Douglas Gregor0d95f772011-08-24 19:03:07 +00005309 ModuleMgr.visit(&DeclContextNameLookupVisitor::visit, &Visitor);
Douglas Gregor25123082009-04-22 22:34:57 +00005310 ++NumVisibleDeclContextsRead;
Argyrios Kyrtzidis074dcc82010-08-20 16:04:35 +00005311 SetExternalVisibleDeclsForName(DC, Name, Decls);
John McCall76bd1f32010-06-01 09:23:16 +00005312 return const_cast<DeclContext*>(DC)->lookup(Name);
Douglas Gregor2cf26342009-04-09 22:27:44 +00005313}
5314
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005315namespace {
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005316 /// \brief ModuleFile visitor used to retrieve all visible names in a
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005317 /// declaration context.
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005318 class DeclContextAllNamesVisitor {
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005319 ASTReader &Reader;
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005320 llvm::SmallVectorImpl<const DeclContext *> &Contexts;
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005321 llvm::DenseMap<DeclarationName, SmallVector<NamedDecl *, 8> > &Decls;
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005322
5323 public:
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005324 DeclContextAllNamesVisitor(ASTReader &Reader,
5325 SmallVectorImpl<const DeclContext *> &Contexts,
5326 llvm::DenseMap<DeclarationName,
5327 SmallVector<NamedDecl *, 8> > &Decls)
5328 : Reader(Reader), Contexts(Contexts), Decls(Decls) { }
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005329
5330 static bool visit(ModuleFile &M, void *UserData) {
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005331 DeclContextAllNamesVisitor *This
5332 = static_cast<DeclContextAllNamesVisitor *>(UserData);
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005333
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005334 // Check whether we have any visible declaration information for
5335 // this context in this module.
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005336 ModuleFile::DeclContextInfosMap::iterator Info;
5337 bool FoundInfo = false;
5338 for (unsigned I = 0, N = This->Contexts.size(); I != N; ++I) {
5339 Info = M.DeclContextInfos.find(This->Contexts[I]);
5340 if (Info != M.DeclContextInfos.end() &&
5341 Info->second.NameLookupTableData) {
5342 FoundInfo = true;
5343 break;
5344 }
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005345 }
5346
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005347 if (!FoundInfo)
5348 return false;
5349
5350 ASTDeclContextNameLookupTable *LookupTable =
5351 Info->second.NameLookupTableData;
5352 bool FoundAnything = false;
5353 for (ASTDeclContextNameLookupTable::data_iterator
5354 I = LookupTable->data_begin(), E = LookupTable->data_end();
5355 I != E; ++I) {
5356 ASTDeclContextNameLookupTrait::data_type Data = *I;
5357 for (; Data.first != Data.second; ++Data.first) {
5358 NamedDecl *ND = This->Reader.GetLocalDeclAs<NamedDecl>(M,
5359 *Data.first);
5360 if (!ND)
5361 continue;
5362
5363 // Record this declaration.
5364 FoundAnything = true;
5365 This->Decls[ND->getDeclName()].push_back(ND);
5366 }
5367 }
5368
5369 return FoundAnything;
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005370 }
5371 };
5372}
5373
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005374void ASTReader::completeVisibleDeclsMap(const DeclContext *DC) {
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005375 if (!DC->hasExternalVisibleStorage())
5376 return;
Nick Lewyckyb346d2f2012-04-16 02:51:46 +00005377 llvm::DenseMap<DeclarationName, llvm::SmallVector<NamedDecl*, 8> > Decls;
5378
5379 // Compute the declaration contexts we need to look into. Multiple such
5380 // declaration contexts occur when two declaration contexts from disjoint
5381 // modules get merged, e.g., when two namespaces with the same name are
5382 // independently defined in separate modules.
5383 SmallVector<const DeclContext *, 2> Contexts;
5384 Contexts.push_back(DC);
5385
5386 if (DC->isNamespace()) {
5387 MergedDeclsMap::iterator Merged
5388 = MergedDecls.find(const_cast<Decl *>(cast<Decl>(DC)));
5389 if (Merged != MergedDecls.end()) {
5390 for (unsigned I = 0, N = Merged->second.size(); I != N; ++I)
5391 Contexts.push_back(cast<DeclContext>(GetDecl(Merged->second[I])));
5392 }
5393 }
5394
5395 DeclContextAllNamesVisitor Visitor(*this, Contexts, Decls);
5396 ModuleMgr.visit(&DeclContextAllNamesVisitor::visit, &Visitor);
5397 ++NumVisibleDeclContextsRead;
5398
5399 for (llvm::DenseMap<DeclarationName,
5400 llvm::SmallVector<NamedDecl*, 8> >::iterator
5401 I = Decls.begin(), E = Decls.end(); I != E; ++I) {
5402 SetExternalVisibleDeclsForName(DC, I->first, I->second);
5403 }
Argyrios Kyrtzidis394e5392012-04-26 18:34:14 +00005404 const_cast<DeclContext *>(DC)->setHasExternalVisibleStorage(false);
Argyrios Kyrtzidis643586f2012-03-22 16:08:04 +00005405}
5406
Argyrios Kyrtzidis144b38a2011-09-13 21:35:00 +00005407/// \brief Under non-PCH compilation the consumer receives the objc methods
5408/// before receiving the implementation, and codegen depends on this.
5409/// We simulate this by deserializing and passing to consumer the methods of the
5410/// implementation before passing the deserialized implementation decl.
5411static void PassObjCImplDeclToConsumer(ObjCImplDecl *ImplD,
5412 ASTConsumer *Consumer) {
5413 assert(ImplD && Consumer);
5414
5415 for (ObjCImplDecl::method_iterator
5416 I = ImplD->meth_begin(), E = ImplD->meth_end(); I != E; ++I)
David Blaikie581deb32012-06-06 20:45:41 +00005417 Consumer->HandleInterestingDecl(DeclGroupRef(*I));
Argyrios Kyrtzidis144b38a2011-09-13 21:35:00 +00005418
5419 Consumer->HandleInterestingDecl(DeclGroupRef(ImplD));
5420}
5421
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005422void ASTReader::PassInterestingDeclsToConsumer() {
Argyrios Kyrtzidisbb80a8e2010-07-07 15:46:26 +00005423 assert(Consumer);
5424 while (!InterestingDecls.empty()) {
Argyrios Kyrtzidis144b38a2011-09-13 21:35:00 +00005425 Decl *D = InterestingDecls.front();
Argyrios Kyrtzidisbb80a8e2010-07-07 15:46:26 +00005426 InterestingDecls.pop_front();
Argyrios Kyrtzidis144b38a2011-09-13 21:35:00 +00005427
Argyrios Kyrtzidis8d39c3d2011-11-30 23:18:26 +00005428 PassInterestingDeclToConsumer(D);
Argyrios Kyrtzidisbb80a8e2010-07-07 15:46:26 +00005429 }
5430}
5431
Argyrios Kyrtzidis8d39c3d2011-11-30 23:18:26 +00005432void ASTReader::PassInterestingDeclToConsumer(Decl *D) {
5433 if (ObjCImplDecl *ImplD = dyn_cast<ObjCImplDecl>(D))
5434 PassObjCImplDeclToConsumer(ImplD, Consumer);
5435 else
5436 Consumer->HandleInterestingDecl(DeclGroupRef(D));
5437}
5438
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005439void ASTReader::StartTranslationUnit(ASTConsumer *Consumer) {
Douglas Gregor0af2ca42009-04-22 19:09:20 +00005440 this->Consumer = Consumer;
5441
Douglas Gregorfdd01722009-04-14 00:24:19 +00005442 if (!Consumer)
5443 return;
5444
5445 for (unsigned I = 0, N = ExternalDefinitions.size(); I != N; ++I) {
Argyrios Kyrtzidisbb80a8e2010-07-07 15:46:26 +00005446 // Force deserialization of this decl, which will cause it to be queued for
5447 // passing to the consumer.
Daniel Dunbar04a0b502009-09-17 03:06:44 +00005448 GetDecl(ExternalDefinitions[I]);
Douglas Gregorfdd01722009-04-14 00:24:19 +00005449 }
Douglas Gregor1a995dd2011-09-15 18:47:32 +00005450 ExternalDefinitions.clear();
Douglas Gregorc62a2fe2009-04-25 00:41:30 +00005451
Argyrios Kyrtzidisbb80a8e2010-07-07 15:46:26 +00005452 PassInterestingDeclsToConsumer();
Douglas Gregorfdd01722009-04-14 00:24:19 +00005453}
5454
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005455void ASTReader::PrintStats() {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005456 std::fprintf(stderr, "*** AST File Statistics:\n");
Douglas Gregor2cf26342009-04-09 22:27:44 +00005457
Mike Stump1eb44332009-09-09 15:08:12 +00005458 unsigned NumTypesLoaded
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005459 = TypesLoaded.size() - std::count(TypesLoaded.begin(), TypesLoaded.end(),
John McCall0953e762009-09-24 19:53:00 +00005460 QualType());
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005461 unsigned NumDeclsLoaded
5462 = DeclsLoaded.size() - std::count(DeclsLoaded.begin(), DeclsLoaded.end(),
5463 (Decl *)0);
5464 unsigned NumIdentifiersLoaded
5465 = IdentifiersLoaded.size() - std::count(IdentifiersLoaded.begin(),
5466 IdentifiersLoaded.end(),
5467 (IdentifierInfo *)0);
Douglas Gregora8235d62012-10-09 23:05:51 +00005468 unsigned NumMacrosLoaded
5469 = MacrosLoaded.size() - std::count(MacrosLoaded.begin(),
5470 MacrosLoaded.end(),
5471 (MacroInfo *)0);
Mike Stump1eb44332009-09-09 15:08:12 +00005472 unsigned NumSelectorsLoaded
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005473 = SelectorsLoaded.size() - std::count(SelectorsLoaded.begin(),
5474 SelectorsLoaded.end(),
5475 Selector());
Douglas Gregor2d41cc12009-04-13 20:50:16 +00005476
Douglas Gregor4fed3f42009-04-27 18:38:38 +00005477 std::fprintf(stderr, " %u stat cache hits\n", NumStatHits);
5478 std::fprintf(stderr, " %u stat cache misses\n", NumStatMisses);
Douglas Gregor0cdd7982011-07-21 18:46:38 +00005479 if (unsigned TotalNumSLocEntries = getTotalNumSLocs())
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00005480 std::fprintf(stderr, " %u/%u source location entries read (%f%%)\n",
5481 NumSLocEntriesRead, TotalNumSLocEntries,
5482 ((float)NumSLocEntriesRead/TotalNumSLocEntries * 100));
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00005483 if (!TypesLoaded.empty())
Douglas Gregor83941df2009-04-25 17:48:32 +00005484 std::fprintf(stderr, " %u/%u types read (%f%%)\n",
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00005485 NumTypesLoaded, (unsigned)TypesLoaded.size(),
5486 ((float)NumTypesLoaded/TypesLoaded.size() * 100));
5487 if (!DeclsLoaded.empty())
Douglas Gregor83941df2009-04-25 17:48:32 +00005488 std::fprintf(stderr, " %u/%u declarations read (%f%%)\n",
Douglas Gregor8f5dc7f2009-04-25 18:35:21 +00005489 NumDeclsLoaded, (unsigned)DeclsLoaded.size(),
5490 ((float)NumDeclsLoaded/DeclsLoaded.size() * 100));
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005491 if (!IdentifiersLoaded.empty())
Douglas Gregor83941df2009-04-25 17:48:32 +00005492 std::fprintf(stderr, " %u/%u identifiers read (%f%%)\n",
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005493 NumIdentifiersLoaded, (unsigned)IdentifiersLoaded.size(),
5494 ((float)NumIdentifiersLoaded/IdentifiersLoaded.size() * 100));
Douglas Gregora8235d62012-10-09 23:05:51 +00005495 if (!MacrosLoaded.empty())
5496 std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
5497 NumMacrosLoaded, (unsigned)MacrosLoaded.size(),
5498 ((float)NumMacrosLoaded/MacrosLoaded.size() * 100));
Sebastian Redl725cd962010-08-04 20:40:17 +00005499 if (!SelectorsLoaded.empty())
Douglas Gregor83941df2009-04-25 17:48:32 +00005500 std::fprintf(stderr, " %u/%u selectors read (%f%%)\n",
Sebastian Redl725cd962010-08-04 20:40:17 +00005501 NumSelectorsLoaded, (unsigned)SelectorsLoaded.size(),
5502 ((float)NumSelectorsLoaded/SelectorsLoaded.size() * 100));
Douglas Gregor83941df2009-04-25 17:48:32 +00005503 if (TotalNumStatements)
5504 std::fprintf(stderr, " %u/%u statements read (%f%%)\n",
5505 NumStatementsRead, TotalNumStatements,
5506 ((float)NumStatementsRead/TotalNumStatements * 100));
5507 if (TotalNumMacros)
5508 std::fprintf(stderr, " %u/%u macros read (%f%%)\n",
5509 NumMacrosRead, TotalNumMacros,
5510 ((float)NumMacrosRead/TotalNumMacros * 100));
5511 if (TotalLexicalDeclContexts)
5512 std::fprintf(stderr, " %u/%u lexical declcontexts read (%f%%)\n",
5513 NumLexicalDeclContextsRead, TotalLexicalDeclContexts,
5514 ((float)NumLexicalDeclContextsRead/TotalLexicalDeclContexts
5515 * 100));
5516 if (TotalVisibleDeclContexts)
5517 std::fprintf(stderr, " %u/%u visible declcontexts read (%f%%)\n",
5518 NumVisibleDeclContextsRead, TotalVisibleDeclContexts,
5519 ((float)NumVisibleDeclContextsRead/TotalVisibleDeclContexts
5520 * 100));
Sebastian Redlfa78dec2010-08-04 21:22:45 +00005521 if (TotalNumMethodPoolEntries) {
Douglas Gregor83941df2009-04-25 17:48:32 +00005522 std::fprintf(stderr, " %u/%u method pool entries read (%f%%)\n",
Sebastian Redlfa78dec2010-08-04 21:22:45 +00005523 NumMethodPoolEntriesRead, TotalNumMethodPoolEntries,
5524 ((float)NumMethodPoolEntriesRead/TotalNumMethodPoolEntries
Douglas Gregor83941df2009-04-25 17:48:32 +00005525 * 100));
Sebastian Redlfa78dec2010-08-04 21:22:45 +00005526 std::fprintf(stderr, " %u method pool misses\n", NumMethodPoolMisses);
Douglas Gregor83941df2009-04-25 17:48:32 +00005527 }
Douglas Gregor2cf26342009-04-09 22:27:44 +00005528 std::fprintf(stderr, "\n");
Douglas Gregor23d7df52011-07-21 19:50:14 +00005529 dump();
5530 std::fprintf(stderr, "\n");
5531}
5532
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005533template<typename Key, typename ModuleFile, unsigned InitialCapacity>
Douglas Gregor23d7df52011-07-21 19:50:14 +00005534static void
Chris Lattner5f9e2722011-07-23 10:55:15 +00005535dumpModuleIDMap(StringRef Name,
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005536 const ContinuousRangeMap<Key, ModuleFile *,
Douglas Gregor23d7df52011-07-21 19:50:14 +00005537 InitialCapacity> &Map) {
5538 if (Map.begin() == Map.end())
5539 return;
5540
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005541 typedef ContinuousRangeMap<Key, ModuleFile *, InitialCapacity> MapType;
Douglas Gregor23d7df52011-07-21 19:50:14 +00005542 llvm::errs() << Name << ":\n";
5543 for (typename MapType::const_iterator I = Map.begin(), IEnd = Map.end();
5544 I != IEnd; ++I) {
5545 llvm::errs() << " " << I->first << " -> " << I->second->FileName
5546 << "\n";
5547 }
5548}
5549
Douglas Gregor23d7df52011-07-21 19:50:14 +00005550void ASTReader::dump() {
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005551 llvm::errs() << "*** PCH/ModuleFile Remappings:\n";
Douglas Gregor8f1231b2011-07-22 06:10:01 +00005552 dumpModuleIDMap("Global bit offset map", GlobalBitOffsetsMap);
Douglas Gregor23d7df52011-07-21 19:50:14 +00005553 dumpModuleIDMap("Global source location entry map", GlobalSLocEntryMap);
Douglas Gregor1e849b62011-07-29 00:21:44 +00005554 dumpModuleIDMap("Global type map", GlobalTypeMap);
Douglas Gregor9827a802011-07-29 00:56:45 +00005555 dumpModuleIDMap("Global declaration map", GlobalDeclMap);
Douglas Gregor9827a802011-07-29 00:56:45 +00005556 dumpModuleIDMap("Global identifier map", GlobalIdentifierMap);
Douglas Gregora8235d62012-10-09 23:05:51 +00005557 dumpModuleIDMap("Global macro map", GlobalMacroMap);
Douglas Gregor26ced122011-12-01 00:59:36 +00005558 dumpModuleIDMap("Global submodule map", GlobalSubmoduleMap);
Douglas Gregor9827a802011-07-29 00:56:45 +00005559 dumpModuleIDMap("Global selector map", GlobalSelectorMap);
Douglas Gregor9827a802011-07-29 00:56:45 +00005560 dumpModuleIDMap("Global preprocessed entity map",
5561 GlobalPreprocessedEntityMap);
Douglas Gregor8df5c9b2011-08-02 11:12:41 +00005562
5563 llvm::errs() << "\n*** PCH/Modules Loaded:";
5564 for (ModuleManager::ModuleConstIterator M = ModuleMgr.begin(),
5565 MEnd = ModuleMgr.end();
5566 M != MEnd; ++M)
5567 (*M)->dump();
Douglas Gregor2cf26342009-04-09 22:27:44 +00005568}
5569
Ted Kremeneke9b5f3d2011-04-28 23:46:20 +00005570/// Return the amount of memory used by memory buffers, breaking down
5571/// by heap-backed versus mmap'ed memory.
5572void ASTReader::getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00005573 for (ModuleConstIterator I = ModuleMgr.begin(),
5574 E = ModuleMgr.end(); I != E; ++I) {
5575 if (llvm::MemoryBuffer *buf = (*I)->Buffer.get()) {
Ted Kremeneke9b5f3d2011-04-28 23:46:20 +00005576 size_t bytes = buf->getBufferSize();
5577 switch (buf->getBufferKind()) {
5578 case llvm::MemoryBuffer::MemoryBuffer_Malloc:
5579 sizes.malloc_bytes += bytes;
5580 break;
5581 case llvm::MemoryBuffer::MemoryBuffer_MMap:
5582 sizes.mmap_bytes += bytes;
5583 break;
5584 }
5585 }
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00005586 }
Ted Kremeneke9b5f3d2011-04-28 23:46:20 +00005587}
5588
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005589void ASTReader::InitializeSema(Sema &S) {
Douglas Gregor668c1a42009-04-21 22:25:48 +00005590 SemaObj = &S;
Axel Naumann0ec56b72012-10-18 19:05:02 +00005591 S.addExternalSource(this);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00005592
Douglas Gregor6cfc1a82009-04-22 21:15:06 +00005593 // Makes sure any declarations that were deserialized "too early"
5594 // still get added to the identifier's declaration chains.
Douglas Gregor76dc8892010-09-24 23:29:12 +00005595 for (unsigned I = 0, N = PreloadedDecls.size(); I != N; ++I) {
Douglas Gregoreee242f2011-10-27 09:33:13 +00005596 SemaObj->pushExternalDeclIntoScope(PreloadedDecls[I],
5597 PreloadedDecls[I]->getDeclName());
Douglas Gregor668c1a42009-04-21 22:25:48 +00005598 }
Douglas Gregor6cfc1a82009-04-22 21:15:06 +00005599 PreloadedDecls.clear();
Douglas Gregor4c0e86b2009-04-22 22:02:47 +00005600
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00005601 // Load the offsets of the declarations that Sema references.
5602 // They will be lazily deserialized when needed.
5603 if (!SemaDeclRefs.empty()) {
5604 assert(SemaDeclRefs.size() == 2 && "More decl refs than expected!");
Douglas Gregor1e5b6f62011-07-28 00:57:24 +00005605 if (!SemaObj->StdNamespace)
5606 SemaObj->StdNamespace = SemaDeclRefs[0];
5607 if (!SemaObj->StdBadAlloc)
5608 SemaObj->StdBadAlloc = SemaDeclRefs[1];
Argyrios Kyrtzidis76c38d32010-08-02 07:14:54 +00005609 }
5610
Peter Collingbourne84bccea2011-02-15 19:46:30 +00005611 if (!FPPragmaOptions.empty()) {
5612 assert(FPPragmaOptions.size() == 1 && "Wrong number of FP_PRAGMA_OPTIONS");
5613 SemaObj->FPFeatures.fp_contract = FPPragmaOptions[0];
5614 }
5615
5616 if (!OpenCLExtensions.empty()) {
5617 unsigned I = 0;
5618#define OPENCLEXT(nm) SemaObj->OpenCLFeatures.nm = OpenCLExtensions[I++];
5619#include "clang/Basic/OpenCLExtensions.def"
5620
5621 assert(OpenCLExtensions.size() == I && "Wrong number of OPENCL_EXTENSIONS");
5622 }
Douglas Gregor668c1a42009-04-21 22:25:48 +00005623}
5624
Douglas Gregor211f6e82011-08-20 04:39:52 +00005625IdentifierInfo* ASTReader::get(const char *NameStart, const char *NameEnd) {
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00005626 // Note that we are loading an identifier.
5627 Deserializing AnIdentifier(this);
5628
Douglas Gregor057df202012-01-18 20:56:22 +00005629 IdentifierLookupVisitor Visitor(StringRef(NameStart, NameEnd - NameStart),
5630 /*PriorGeneration=*/0);
Douglas Gregor211f6e82011-08-20 04:39:52 +00005631 ModuleMgr.visit(IdentifierLookupVisitor::visit, &Visitor);
Douglas Gregoreee242f2011-10-27 09:33:13 +00005632 IdentifierInfo *II = Visitor.getIdentifierInfo();
Douglas Gregor057df202012-01-18 20:56:22 +00005633 markIdentifierUpToDate(II);
Douglas Gregoreee242f2011-10-27 09:33:13 +00005634 return II;
Douglas Gregor668c1a42009-04-21 22:25:48 +00005635}
5636
Douglas Gregor95f42922010-10-14 22:11:03 +00005637namespace clang {
5638 /// \brief An identifier-lookup iterator that enumerates all of the
5639 /// identifiers stored within a set of AST files.
5640 class ASTIdentifierIterator : public IdentifierIterator {
5641 /// \brief The AST reader whose identifiers are being enumerated.
5642 const ASTReader &Reader;
5643
5644 /// \brief The current index into the chain of AST files stored in
5645 /// the AST reader.
5646 unsigned Index;
5647
5648 /// \brief The current position within the identifier lookup table
5649 /// of the current AST file.
5650 ASTIdentifierLookupTable::key_iterator Current;
5651
5652 /// \brief The end position within the identifier lookup table of
5653 /// the current AST file.
5654 ASTIdentifierLookupTable::key_iterator End;
5655
5656 public:
5657 explicit ASTIdentifierIterator(const ASTReader &Reader);
5658
Chris Lattner5f9e2722011-07-23 10:55:15 +00005659 virtual StringRef Next();
Douglas Gregor95f42922010-10-14 22:11:03 +00005660 };
5661}
5662
5663ASTIdentifierIterator::ASTIdentifierIterator(const ASTReader &Reader)
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00005664 : Reader(Reader), Index(Reader.ModuleMgr.size() - 1) {
Douglas Gregor95f42922010-10-14 22:11:03 +00005665 ASTIdentifierLookupTable *IdTable
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00005666 = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].IdentifierLookupTable;
Douglas Gregor95f42922010-10-14 22:11:03 +00005667 Current = IdTable->key_begin();
5668 End = IdTable->key_end();
5669}
5670
Chris Lattner5f9e2722011-07-23 10:55:15 +00005671StringRef ASTIdentifierIterator::Next() {
Douglas Gregor95f42922010-10-14 22:11:03 +00005672 while (Current == End) {
5673 // If we have exhausted all of our AST files, we're done.
5674 if (Index == 0)
Chris Lattner5f9e2722011-07-23 10:55:15 +00005675 return StringRef();
Douglas Gregor95f42922010-10-14 22:11:03 +00005676
5677 --Index;
5678 ASTIdentifierLookupTable *IdTable
Jonathan D. Turner5d6d89f2011-07-25 20:32:21 +00005679 = (ASTIdentifierLookupTable *)Reader.ModuleMgr[Index].
5680 IdentifierLookupTable;
Douglas Gregor95f42922010-10-14 22:11:03 +00005681 Current = IdTable->key_begin();
5682 End = IdTable->key_end();
5683 }
5684
5685 // We have any identifiers remaining in the current AST file; return
5686 // the next one.
5687 std::pair<const char*, unsigned> Key = *Current;
5688 ++Current;
Chris Lattner5f9e2722011-07-23 10:55:15 +00005689 return StringRef(Key.first, Key.second);
Douglas Gregor95f42922010-10-14 22:11:03 +00005690}
5691
5692IdentifierIterator *ASTReader::getIdentifiers() const {
5693 return new ASTIdentifierIterator(*this);
5694}
5695
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005696namespace clang { namespace serialization {
5697 class ReadMethodPoolVisitor {
5698 ASTReader &Reader;
Douglas Gregor8efca6b2012-01-25 01:14:32 +00005699 Selector Sel;
5700 unsigned PriorGeneration;
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005701 llvm::SmallVector<ObjCMethodDecl *, 4> InstanceMethods;
5702 llvm::SmallVector<ObjCMethodDecl *, 4> FactoryMethods;
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00005703
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005704 public:
Douglas Gregor8efca6b2012-01-25 01:14:32 +00005705 ReadMethodPoolVisitor(ASTReader &Reader, Selector Sel,
5706 unsigned PriorGeneration)
5707 : Reader(Reader), Sel(Sel), PriorGeneration(PriorGeneration) { }
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005708
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005709 static bool visit(ModuleFile &M, void *UserData) {
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005710 ReadMethodPoolVisitor *This
5711 = static_cast<ReadMethodPoolVisitor *>(UserData);
5712
5713 if (!M.SelectorLookupTable)
5714 return false;
5715
Douglas Gregor8efca6b2012-01-25 01:14:32 +00005716 // If we've already searched this module file, skip it now.
5717 if (M.Generation <= This->PriorGeneration)
5718 return true;
5719
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005720 ASTSelectorLookupTable *PoolTable
5721 = (ASTSelectorLookupTable*)M.SelectorLookupTable;
5722 ASTSelectorLookupTable::iterator Pos = PoolTable->find(This->Sel);
5723 if (Pos == PoolTable->end())
5724 return false;
5725
5726 ++This->Reader.NumSelectorsRead;
Sebastian Redlfa78dec2010-08-04 21:22:45 +00005727 // FIXME: Not quite happy with the statistics here. We probably should
5728 // disable this tracking when called via LoadSelector.
5729 // Also, should entries without methods count as misses?
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005730 ++This->Reader.NumMethodPoolEntriesRead;
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005731 ASTSelectorLookupTrait::data_type Data = *Pos;
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005732 if (This->Reader.DeserializationListener)
5733 This->Reader.DeserializationListener->SelectorRead(Data.ID,
5734 This->Sel);
5735
5736 This->InstanceMethods.append(Data.Instance.begin(), Data.Instance.end());
5737 This->FactoryMethods.append(Data.Factory.begin(), Data.Factory.end());
5738 return true;
Sebastian Redl725cd962010-08-04 20:40:17 +00005739 }
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005740
5741 /// \brief Retrieve the instance methods found by this visitor.
Douglas Gregor5ac4b692012-01-25 00:49:42 +00005742 ArrayRef<ObjCMethodDecl *> getInstanceMethods() const {
5743 return InstanceMethods;
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005744 }
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00005745
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005746 /// \brief Retrieve the instance methods found by this visitor.
Douglas Gregor5ac4b692012-01-25 00:49:42 +00005747 ArrayRef<ObjCMethodDecl *> getFactoryMethods() const {
5748 return FactoryMethods;
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005749 }
5750 };
5751} } // end namespace clang::serialization
5752
Douglas Gregor5ac4b692012-01-25 00:49:42 +00005753/// \brief Add the given set of methods to the method list.
5754static void addMethodsToPool(Sema &S, ArrayRef<ObjCMethodDecl *> Methods,
5755 ObjCMethodList &List) {
5756 for (unsigned I = 0, N = Methods.size(); I != N; ++I) {
5757 S.addMethodToGlobalList(&List, Methods[I]);
5758 }
5759}
5760
5761void ASTReader::ReadMethodPool(Selector Sel) {
Douglas Gregor8efca6b2012-01-25 01:14:32 +00005762 // Get the selector generation and update it to the current generation.
5763 unsigned &Generation = SelectorGeneration[Sel];
5764 unsigned PriorGeneration = Generation;
5765 Generation = CurrentGeneration;
5766
5767 // Search for methods defined with this selector.
5768 ReadMethodPoolVisitor Visitor(*this, Sel, PriorGeneration);
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005769 ModuleMgr.visit(&ReadMethodPoolVisitor::visit, &Visitor);
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005770
Douglas Gregor5ac4b692012-01-25 00:49:42 +00005771 if (Visitor.getInstanceMethods().empty() &&
5772 Visitor.getFactoryMethods().empty()) {
Douglas Gregor3d15ab82011-08-25 14:51:20 +00005773 ++NumMethodPoolMisses;
Douglas Gregor5ac4b692012-01-25 00:49:42 +00005774 return;
5775 }
5776
5777 if (!getSema())
5778 return;
5779
5780 Sema &S = *getSema();
5781 Sema::GlobalMethodPool::iterator Pos
5782 = S.MethodPool.insert(std::make_pair(Sel, Sema::GlobalMethods())).first;
5783
5784 addMethodsToPool(S, Visitor.getInstanceMethods(), Pos->second.first);
5785 addMethodsToPool(S, Visitor.getFactoryMethods(), Pos->second.second);
Douglas Gregorf0aaf7a2009-04-24 21:10:55 +00005786}
5787
Douglas Gregord8bba9c2011-06-28 16:20:02 +00005788void ASTReader::ReadKnownNamespaces(
Chris Lattner5f9e2722011-07-23 10:55:15 +00005789 SmallVectorImpl<NamespaceDecl *> &Namespaces) {
Douglas Gregord8bba9c2011-06-28 16:20:02 +00005790 Namespaces.clear();
5791
5792 for (unsigned I = 0, N = KnownNamespaces.size(); I != N; ++I) {
5793 if (NamespaceDecl *Namespace
5794 = dyn_cast_or_null<NamespaceDecl>(GetDecl(KnownNamespaces[I])))
5795 Namespaces.push_back(Namespace);
5796 }
5797}
5798
Douglas Gregora8623202011-07-27 20:58:46 +00005799void ASTReader::ReadTentativeDefinitions(
5800 SmallVectorImpl<VarDecl *> &TentativeDefs) {
5801 for (unsigned I = 0, N = TentativeDefinitions.size(); I != N; ++I) {
5802 VarDecl *Var = dyn_cast_or_null<VarDecl>(GetDecl(TentativeDefinitions[I]));
5803 if (Var)
5804 TentativeDefs.push_back(Var);
5805 }
5806 TentativeDefinitions.clear();
5807}
5808
Douglas Gregora2ee20a2011-07-27 21:45:57 +00005809void ASTReader::ReadUnusedFileScopedDecls(
5810 SmallVectorImpl<const DeclaratorDecl *> &Decls) {
5811 for (unsigned I = 0, N = UnusedFileScopedDecls.size(); I != N; ++I) {
5812 DeclaratorDecl *D
5813 = dyn_cast_or_null<DeclaratorDecl>(GetDecl(UnusedFileScopedDecls[I]));
5814 if (D)
5815 Decls.push_back(D);
5816 }
5817 UnusedFileScopedDecls.clear();
5818}
5819
Douglas Gregor0129b562011-07-27 21:57:17 +00005820void ASTReader::ReadDelegatingConstructors(
5821 SmallVectorImpl<CXXConstructorDecl *> &Decls) {
5822 for (unsigned I = 0, N = DelegatingCtorDecls.size(); I != N; ++I) {
5823 CXXConstructorDecl *D
5824 = dyn_cast_or_null<CXXConstructorDecl>(GetDecl(DelegatingCtorDecls[I]));
5825 if (D)
5826 Decls.push_back(D);
5827 }
5828 DelegatingCtorDecls.clear();
5829}
5830
Douglas Gregord58a0a52011-07-28 00:39:29 +00005831void ASTReader::ReadExtVectorDecls(SmallVectorImpl<TypedefNameDecl *> &Decls) {
5832 for (unsigned I = 0, N = ExtVectorDecls.size(); I != N; ++I) {
5833 TypedefNameDecl *D
5834 = dyn_cast_or_null<TypedefNameDecl>(GetDecl(ExtVectorDecls[I]));
5835 if (D)
5836 Decls.push_back(D);
5837 }
5838 ExtVectorDecls.clear();
5839}
5840
Douglas Gregora126f172011-07-28 00:53:40 +00005841void ASTReader::ReadDynamicClasses(SmallVectorImpl<CXXRecordDecl *> &Decls) {
5842 for (unsigned I = 0, N = DynamicClasses.size(); I != N; ++I) {
5843 CXXRecordDecl *D
5844 = dyn_cast_or_null<CXXRecordDecl>(GetDecl(DynamicClasses[I]));
5845 if (D)
5846 Decls.push_back(D);
5847 }
5848 DynamicClasses.clear();
5849}
5850
Douglas Gregorec12ce22011-07-28 14:20:37 +00005851void
5852ASTReader::ReadLocallyScopedExternalDecls(SmallVectorImpl<NamedDecl *> &Decls) {
5853 for (unsigned I = 0, N = LocallyScopedExternalDecls.size(); I != N; ++I) {
5854 NamedDecl *D
5855 = dyn_cast_or_null<NamedDecl>(GetDecl(LocallyScopedExternalDecls[I]));
5856 if (D)
5857 Decls.push_back(D);
5858 }
5859 LocallyScopedExternalDecls.clear();
5860}
5861
Douglas Gregor5b9dc7c2011-07-28 14:54:22 +00005862void ASTReader::ReadReferencedSelectors(
5863 SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) {
5864 if (ReferencedSelectorsData.empty())
5865 return;
5866
5867 // If there are @selector references added them to its pool. This is for
5868 // implementation of -Wselector.
5869 unsigned int DataSize = ReferencedSelectorsData.size()-1;
5870 unsigned I = 0;
5871 while (I < DataSize) {
5872 Selector Sel = DecodeSelector(ReferencedSelectorsData[I++]);
5873 SourceLocation SelLoc
5874 = SourceLocation::getFromRawEncoding(ReferencedSelectorsData[I++]);
5875 Sels.push_back(std::make_pair(Sel, SelLoc));
5876 }
5877 ReferencedSelectorsData.clear();
5878}
5879
Douglas Gregor31e37b22011-07-28 18:09:57 +00005880void ASTReader::ReadWeakUndeclaredIdentifiers(
5881 SmallVectorImpl<std::pair<IdentifierInfo *, WeakInfo> > &WeakIDs) {
5882 if (WeakUndeclaredIdentifiers.empty())
5883 return;
5884
5885 for (unsigned I = 0, N = WeakUndeclaredIdentifiers.size(); I < N; /*none*/) {
5886 IdentifierInfo *WeakId
5887 = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
5888 IdentifierInfo *AliasId
5889 = DecodeIdentifierInfo(WeakUndeclaredIdentifiers[I++]);
5890 SourceLocation Loc
5891 = SourceLocation::getFromRawEncoding(WeakUndeclaredIdentifiers[I++]);
5892 bool Used = WeakUndeclaredIdentifiers[I++];
5893 WeakInfo WI(AliasId, Loc);
5894 WI.setUsed(Used);
5895 WeakIDs.push_back(std::make_pair(WeakId, WI));
5896 }
5897 WeakUndeclaredIdentifiers.clear();
5898}
5899
Douglas Gregordfe65432011-07-28 19:11:31 +00005900void ASTReader::ReadUsedVTables(SmallVectorImpl<ExternalVTableUse> &VTables) {
5901 for (unsigned Idx = 0, N = VTableUses.size(); Idx < N; /* In loop */) {
5902 ExternalVTableUse VT;
5903 VT.Record = dyn_cast_or_null<CXXRecordDecl>(GetDecl(VTableUses[Idx++]));
5904 VT.Location = SourceLocation::getFromRawEncoding(VTableUses[Idx++]);
5905 VT.DefinitionRequired = VTableUses[Idx++];
5906 VTables.push_back(VT);
5907 }
5908
5909 VTableUses.clear();
5910}
5911
Douglas Gregor6e4a3f52011-07-28 19:49:54 +00005912void ASTReader::ReadPendingInstantiations(
5913 SmallVectorImpl<std::pair<ValueDecl *, SourceLocation> > &Pending) {
5914 for (unsigned Idx = 0, N = PendingInstantiations.size(); Idx < N;) {
5915 ValueDecl *D = cast<ValueDecl>(GetDecl(PendingInstantiations[Idx++]));
5916 SourceLocation Loc
5917 = SourceLocation::getFromRawEncoding(PendingInstantiations[Idx++]);
Axel Naumann39d26c32012-10-02 09:09:43 +00005918
Douglas Gregore5fa3c22012-10-03 18:34:48 +00005919 Pending.push_back(std::make_pair(D, Loc));
Douglas Gregor6e4a3f52011-07-28 19:49:54 +00005920 }
5921 PendingInstantiations.clear();
5922}
5923
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005924void ASTReader::LoadSelector(Selector Sel) {
Sebastian Redle58aa892010-08-04 18:21:41 +00005925 // It would be complicated to avoid reading the methods anyway. So don't.
5926 ReadMethodPool(Sel);
5927}
5928
Douglas Gregor95eab172011-07-28 20:55:49 +00005929void ASTReader::SetIdentifierInfo(IdentifierID ID, IdentifierInfo *II) {
Douglas Gregor668c1a42009-04-21 22:25:48 +00005930 assert(ID && "Non-zero identifier ID required");
Douglas Gregora02b1472009-04-28 21:53:25 +00005931 assert(ID <= IdentifiersLoaded.size() && "identifier ID out of range");
Douglas Gregor2b3a5a82009-04-25 19:10:14 +00005932 IdentifiersLoaded[ID - 1] = II;
Sebastian Redlf2f0f032010-07-23 23:49:55 +00005933 if (DeserializationListener)
5934 DeserializationListener->IdentifierRead(ID, II);
Douglas Gregor668c1a42009-04-21 22:25:48 +00005935}
5936
Douglas Gregord89275b2009-07-06 18:54:52 +00005937/// \brief Set the globally-visible declarations associated with the given
5938/// identifier.
5939///
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005940/// If the AST reader is currently in a state where the given declaration IDs
Mike Stump1eb44332009-09-09 15:08:12 +00005941/// cannot safely be resolved, they are queued until it is safe to resolve
Douglas Gregord89275b2009-07-06 18:54:52 +00005942/// them.
5943///
5944/// \param II an IdentifierInfo that refers to one or more globally-visible
5945/// declarations.
5946///
5947/// \param DeclIDs the set of declaration IDs with the name @p II that are
5948/// visible at global scope.
5949///
5950/// \param Nonrecursive should be true to indicate that the caller knows that
5951/// this call is non-recursive, and therefore the globally-visible declarations
5952/// will not be placed onto the pending queue.
Mike Stump1eb44332009-09-09 15:08:12 +00005953void
Sebastian Redlc43b54c2010-08-18 23:56:43 +00005954ASTReader::SetGloballyVisibleDecls(IdentifierInfo *II,
Chris Lattner5f9e2722011-07-23 10:55:15 +00005955 const SmallVectorImpl<uint32_t> &DeclIDs,
Douglas Gregord89275b2009-07-06 18:54:52 +00005956 bool Nonrecursive) {
Argyrios Kyrtzidis29ee3a22010-07-30 10:03:16 +00005957 if (NumCurrentElementsDeserializing && !Nonrecursive) {
Douglas Gregord89275b2009-07-06 18:54:52 +00005958 PendingIdentifierInfos.push_back(PendingIdentifierInfo());
5959 PendingIdentifierInfo &PII = PendingIdentifierInfos.back();
5960 PII.II = II;
Benjamin Kramer4ea884b2010-09-06 23:43:28 +00005961 PII.DeclIDs.append(DeclIDs.begin(), DeclIDs.end());
Douglas Gregord89275b2009-07-06 18:54:52 +00005962 return;
5963 }
Mike Stump1eb44332009-09-09 15:08:12 +00005964
Douglas Gregord89275b2009-07-06 18:54:52 +00005965 for (unsigned I = 0, N = DeclIDs.size(); I != N; ++I) {
5966 NamedDecl *D = cast<NamedDecl>(GetDecl(DeclIDs[I]));
5967 if (SemaObj) {
Douglas Gregoreee242f2011-10-27 09:33:13 +00005968 // Introduce this declaration into the translation-unit scope
5969 // and add it to the declaration chain for this identifier, so
5970 // that (unqualified) name lookup will find it.
5971 SemaObj->pushExternalDeclIntoScope(D, II);
Douglas Gregord89275b2009-07-06 18:54:52 +00005972 } else {
5973 // Queue this declaration so that it will be added to the
5974 // translation unit scope and identifier's declaration chain
5975 // once a Sema object is known.
5976 PreloadedDecls.push_back(D);
5977 }
5978 }
5979}
5980
Douglas Gregor95eab172011-07-28 20:55:49 +00005981IdentifierInfo *ASTReader::DecodeIdentifierInfo(IdentifierID ID) {
Douglas Gregorafaf3082009-04-11 00:14:32 +00005982 if (ID == 0)
5983 return 0;
Mike Stump1eb44332009-09-09 15:08:12 +00005984
Sebastian Redl11f5ccf2010-07-21 00:46:22 +00005985 if (IdentifiersLoaded.empty()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005986 Error("no identifier table in AST file");
Douglas Gregorafaf3082009-04-11 00:14:32 +00005987 return 0;
5988 }
Mike Stump1eb44332009-09-09 15:08:12 +00005989
Sebastian Redl11f5ccf2010-07-21 00:46:22 +00005990 ID -= 1;
5991 if (!IdentifiersLoaded[ID]) {
Douglas Gregor67268d02011-07-20 00:59:32 +00005992 GlobalIdentifierMapType::iterator I = GlobalIdentifierMap.find(ID + 1);
5993 assert(I != GlobalIdentifierMap.end() && "Corrupted global identifier map");
Douglas Gregor1a4761e2011-11-30 23:21:26 +00005994 ModuleFile *M = I->second;
Douglas Gregor9827a802011-07-29 00:56:45 +00005995 unsigned Index = ID - M->BaseIdentifierID;
5996 const char *Str = M->IdentifierTableData + M->IdentifierOffsets[Index];
Douglas Gregord6595a42009-04-25 21:04:17 +00005997
Sebastian Redl3c7f4132010-08-18 23:57:06 +00005998 // All of the strings in the AST file are preceded by a 16-bit length.
5999 // Extract that 16-bit length to avoid having to execute strlen().
Ted Kremenek231bc0b2009-10-23 04:45:31 +00006000 // NOTE: 'StrLenPtr' is an 'unsigned char*' so that we load bytes as
6001 // unsigned integers. This is important to avoid integer overflow when
6002 // we cast them to 'unsigned'.
Ted Kremenekff1ea462009-10-23 03:57:22 +00006003 const unsigned char *StrLenPtr = (const unsigned char*) Str - 2;
Douglas Gregor02fc7512009-04-28 20:01:51 +00006004 unsigned StrLen = (((unsigned) StrLenPtr[0])
6005 | (((unsigned) StrLenPtr[1]) << 8)) - 1;
Sebastian Redl11f5ccf2010-07-21 00:46:22 +00006006 IdentifiersLoaded[ID]
Douglas Gregor712f2fc2011-09-09 22:02:16 +00006007 = &PP.getIdentifierTable().get(StringRef(Str, StrLen));
Sebastian Redlf2f0f032010-07-23 23:49:55 +00006008 if (DeserializationListener)
6009 DeserializationListener->IdentifierRead(ID + 1, IdentifiersLoaded[ID]);
Douglas Gregorafaf3082009-04-11 00:14:32 +00006010 }
Mike Stump1eb44332009-09-09 15:08:12 +00006011
Sebastian Redl11f5ccf2010-07-21 00:46:22 +00006012 return IdentifiersLoaded[ID];
Douglas Gregor2cf26342009-04-09 22:27:44 +00006013}
6014
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006015IdentifierInfo *ASTReader::getLocalIdentifier(ModuleFile &M, unsigned LocalID) {
Douglas Gregor95eab172011-07-28 20:55:49 +00006016 return DecodeIdentifierInfo(getGlobalIdentifierID(M, LocalID));
6017}
6018
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006019IdentifierID ASTReader::getGlobalIdentifierID(ModuleFile &M, unsigned LocalID) {
Douglas Gregor6ec60e02011-08-03 21:49:18 +00006020 if (LocalID < NUM_PREDEF_IDENT_IDS)
6021 return LocalID;
6022
6023 ContinuousRangeMap<uint32_t, int, 2>::iterator I
6024 = M.IdentifierRemap.find(LocalID - NUM_PREDEF_IDENT_IDS);
6025 assert(I != M.IdentifierRemap.end()
6026 && "Invalid index into identifier index remap");
6027
6028 return LocalID + I->second;
Douglas Gregor95eab172011-07-28 20:55:49 +00006029}
6030
Douglas Gregor3ab50fe2012-10-11 17:41:54 +00006031MacroInfo *ASTReader::getMacro(MacroID ID, MacroInfo *Hint) {
Douglas Gregora8235d62012-10-09 23:05:51 +00006032 if (ID == 0)
6033 return 0;
6034
6035 if (MacrosLoaded.empty()) {
6036 Error("no macro table in AST file");
6037 return 0;
6038 }
6039
6040 ID -= NUM_PREDEF_MACRO_IDS;
6041 if (!MacrosLoaded[ID]) {
6042 GlobalMacroMapType::iterator I
6043 = GlobalMacroMap.find(ID + NUM_PREDEF_MACRO_IDS);
6044 assert(I != GlobalMacroMap.end() && "Corrupted global macro map");
6045 ModuleFile *M = I->second;
6046 unsigned Index = ID - M->BaseMacroID;
Douglas Gregor3ab50fe2012-10-11 17:41:54 +00006047 ReadMacroRecord(*M, M->MacroOffsets[Index], Hint);
Douglas Gregora8235d62012-10-09 23:05:51 +00006048 }
6049
6050 return MacrosLoaded[ID];
6051}
6052
6053MacroID ASTReader::getGlobalMacroID(ModuleFile &M, unsigned LocalID) {
6054 if (LocalID < NUM_PREDEF_MACRO_IDS)
6055 return LocalID;
6056
6057 ContinuousRangeMap<uint32_t, int, 2>::iterator I
6058 = M.MacroRemap.find(LocalID - NUM_PREDEF_MACRO_IDS);
6059 assert(I != M.MacroRemap.end() && "Invalid index into macro index remap");
6060
6061 return LocalID + I->second;
6062}
6063
Douglas Gregorf62d43d2011-07-19 16:10:42 +00006064bool ASTReader::ReadSLocEntry(int ID) {
Douglas Gregore23ac652011-04-20 00:21:03 +00006065 return ReadSLocEntryRecord(ID) != Success;
Douglas Gregor7f94b0b2009-04-27 06:38:32 +00006066}
6067
Douglas Gregor26ced122011-12-01 00:59:36 +00006068serialization::SubmoduleID
6069ASTReader::getGlobalSubmoduleID(ModuleFile &M, unsigned LocalID) {
6070 if (LocalID < NUM_PREDEF_SUBMODULE_IDS)
6071 return LocalID;
6072
6073 ContinuousRangeMap<uint32_t, int, 2>::iterator I
6074 = M.SubmoduleRemap.find(LocalID - NUM_PREDEF_SUBMODULE_IDS);
6075 assert(I != M.SubmoduleRemap.end()
Douglas Gregora8235d62012-10-09 23:05:51 +00006076 && "Invalid index into submodule index remap");
Douglas Gregor26ced122011-12-01 00:59:36 +00006077
6078 return LocalID + I->second;
6079}
6080
6081Module *ASTReader::getSubmodule(SubmoduleID GlobalID) {
6082 if (GlobalID < NUM_PREDEF_SUBMODULE_IDS) {
6083 assert(GlobalID == 0 && "Unhandled global submodule ID");
6084 return 0;
6085 }
6086
6087 if (GlobalID > SubmodulesLoaded.size()) {
6088 Error("submodule ID out of range in AST file");
6089 return 0;
6090 }
6091
6092 return SubmodulesLoaded[GlobalID - NUM_PREDEF_SUBMODULE_IDS];
6093}
6094
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006095Selector ASTReader::getLocalSelector(ModuleFile &M, unsigned LocalID) {
Douglas Gregor2d2689a2011-07-28 21:16:51 +00006096 return DecodeSelector(getGlobalSelectorID(M, LocalID));
6097}
6098
6099Selector ASTReader::DecodeSelector(serialization::SelectorID ID) {
Steve Naroff90cd1bb2009-04-23 10:39:46 +00006100 if (ID == 0)
6101 return Selector();
Mike Stump1eb44332009-09-09 15:08:12 +00006102
Sebastian Redl725cd962010-08-04 20:40:17 +00006103 if (ID > SelectorsLoaded.size()) {
Sebastian Redl3c7f4132010-08-18 23:57:06 +00006104 Error("selector ID out of range in AST file");
Steve Naroff90cd1bb2009-04-23 10:39:46 +00006105 return Selector();
6106 }
Douglas Gregor83941df2009-04-25 17:48:32 +00006107
Sebastian Redl725cd962010-08-04 20:40:17 +00006108 if (SelectorsLoaded[ID - 1].getAsOpaquePtr() == 0) {
Douglas Gregor83941df2009-04-25 17:48:32 +00006109 // Load this selector from the selector table.
Douglas Gregor96958cb2011-07-20 01:10:58 +00006110 GlobalSelectorMapType::iterator I = GlobalSelectorMap.find(ID);
6111 assert(I != GlobalSelectorMap.end() && "Corrupted global selector map");
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006112 ModuleFile &M = *I->second;
Douglas Gregor9827a802011-07-29 00:56:45 +00006113 ASTSelectorLookupTrait Trait(*this, M);
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00006114 unsigned Idx = ID - M.BaseSelectorID - NUM_PREDEF_SELECTOR_IDS;
Douglas Gregor96958cb2011-07-20 01:10:58 +00006115 SelectorsLoaded[ID - 1] =
Douglas Gregor9827a802011-07-29 00:56:45 +00006116 Trait.ReadKey(M.SelectorLookupTableData + M.SelectorOffsets[Idx], 0);
Douglas Gregor96958cb2011-07-20 01:10:58 +00006117 if (DeserializationListener)
6118 DeserializationListener->SelectorRead(ID, SelectorsLoaded[ID - 1]);
Douglas Gregor83941df2009-04-25 17:48:32 +00006119 }
6120
Sebastian Redl725cd962010-08-04 20:40:17 +00006121 return SelectorsLoaded[ID - 1];
Steve Naroff90cd1bb2009-04-23 10:39:46 +00006122}
6123
Douglas Gregor8451ec72011-07-28 14:41:43 +00006124Selector ASTReader::GetExternalSelector(serialization::SelectorID ID) {
Douglas Gregor719770d2010-04-06 17:30:22 +00006125 return DecodeSelector(ID);
6126}
6127
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006128uint32_t ASTReader::GetNumExternalSelectors() {
Sebastian Redl725cd962010-08-04 20:40:17 +00006129 // ID 0 (the null selector) is considered an external selector.
6130 return getTotalNumSelectors() + 1;
Douglas Gregor719770d2010-04-06 17:30:22 +00006131}
6132
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00006133serialization::SelectorID
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006134ASTReader::getGlobalSelectorID(ModuleFile &M, unsigned LocalID) const {
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00006135 if (LocalID < NUM_PREDEF_SELECTOR_IDS)
6136 return LocalID;
6137
6138 ContinuousRangeMap<uint32_t, int, 2>::iterator I
6139 = M.SelectorRemap.find(LocalID - NUM_PREDEF_SELECTOR_IDS);
6140 assert(I != M.SelectorRemap.end()
Douglas Gregora8235d62012-10-09 23:05:51 +00006141 && "Invalid index into selector index remap");
Douglas Gregorb18b1fd2011-08-03 23:28:44 +00006142
6143 return LocalID + I->second;
Douglas Gregor8451ec72011-07-28 14:41:43 +00006144}
6145
Mike Stump1eb44332009-09-09 15:08:12 +00006146DeclarationName
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006147ASTReader::ReadDeclarationName(ModuleFile &F,
Douglas Gregor393f2492011-07-22 00:38:23 +00006148 const RecordData &Record, unsigned &Idx) {
Douglas Gregor2cf26342009-04-09 22:27:44 +00006149 DeclarationName::NameKind Kind = (DeclarationName::NameKind)Record[Idx++];
6150 switch (Kind) {
6151 case DeclarationName::Identifier:
Douglas Gregor95eab172011-07-28 20:55:49 +00006152 return DeclarationName(GetIdentifierInfo(F, Record, Idx));
Douglas Gregor2cf26342009-04-09 22:27:44 +00006153
6154 case DeclarationName::ObjCZeroArgSelector:
6155 case DeclarationName::ObjCOneArgSelector:
6156 case DeclarationName::ObjCMultiArgSelector:
Douglas Gregor2d2689a2011-07-28 21:16:51 +00006157 return DeclarationName(ReadSelector(F, Record, Idx));
Douglas Gregor2cf26342009-04-09 22:27:44 +00006158
6159 case DeclarationName::CXXConstructorName:
Douglas Gregor35942772011-09-09 21:34:22 +00006160 return Context.DeclarationNames.getCXXConstructorName(
6161 Context.getCanonicalType(readType(F, Record, Idx)));
Douglas Gregor2cf26342009-04-09 22:27:44 +00006162
6163 case DeclarationName::CXXDestructorName:
Douglas Gregor35942772011-09-09 21:34:22 +00006164 return Context.DeclarationNames.getCXXDestructorName(
6165 Context.getCanonicalType(readType(F, Record, Idx)));
Douglas Gregor2cf26342009-04-09 22:27:44 +00006166
6167 case DeclarationName::CXXConversionFunctionName:
Douglas Gregor35942772011-09-09 21:34:22 +00006168 return Context.DeclarationNames.getCXXConversionFunctionName(
6169 Context.getCanonicalType(readType(F, Record, Idx)));
Douglas Gregor2cf26342009-04-09 22:27:44 +00006170
6171 case DeclarationName::CXXOperatorName:
Douglas Gregor35942772011-09-09 21:34:22 +00006172 return Context.DeclarationNames.getCXXOperatorName(
Douglas Gregor2cf26342009-04-09 22:27:44 +00006173 (OverloadedOperatorKind)Record[Idx++]);
6174
Sean Hunt3e518bd2009-11-29 07:34:05 +00006175 case DeclarationName::CXXLiteralOperatorName:
Douglas Gregor35942772011-09-09 21:34:22 +00006176 return Context.DeclarationNames.getCXXLiteralOperatorName(
Douglas Gregor95eab172011-07-28 20:55:49 +00006177 GetIdentifierInfo(F, Record, Idx));
Sean Hunt3e518bd2009-11-29 07:34:05 +00006178
Douglas Gregor2cf26342009-04-09 22:27:44 +00006179 case DeclarationName::CXXUsingDirective:
6180 return DeclarationName::getUsingDirectiveName();
6181 }
6182
David Blaikie7530c032012-01-17 06:56:22 +00006183 llvm_unreachable("Invalid NameKind!");
Douglas Gregor2cf26342009-04-09 22:27:44 +00006184}
Douglas Gregor0a0428e2009-04-10 20:39:37 +00006185
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006186void ASTReader::ReadDeclarationNameLoc(ModuleFile &F,
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006187 DeclarationNameLoc &DNLoc,
6188 DeclarationName Name,
6189 const RecordData &Record, unsigned &Idx) {
6190 switch (Name.getNameKind()) {
6191 case DeclarationName::CXXConstructorName:
6192 case DeclarationName::CXXDestructorName:
6193 case DeclarationName::CXXConversionFunctionName:
6194 DNLoc.NamedType.TInfo = GetTypeSourceInfo(F, Record, Idx);
6195 break;
6196
6197 case DeclarationName::CXXOperatorName:
6198 DNLoc.CXXOperatorName.BeginOpNameLoc
6199 = ReadSourceLocation(F, Record, Idx).getRawEncoding();
6200 DNLoc.CXXOperatorName.EndOpNameLoc
6201 = ReadSourceLocation(F, Record, Idx).getRawEncoding();
6202 break;
6203
6204 case DeclarationName::CXXLiteralOperatorName:
6205 DNLoc.CXXLiteralOperatorName.OpNameLoc
6206 = ReadSourceLocation(F, Record, Idx).getRawEncoding();
6207 break;
6208
6209 case DeclarationName::Identifier:
6210 case DeclarationName::ObjCZeroArgSelector:
6211 case DeclarationName::ObjCOneArgSelector:
6212 case DeclarationName::ObjCMultiArgSelector:
6213 case DeclarationName::CXXUsingDirective:
6214 break;
6215 }
6216}
6217
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006218void ASTReader::ReadDeclarationNameInfo(ModuleFile &F,
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006219 DeclarationNameInfo &NameInfo,
6220 const RecordData &Record, unsigned &Idx) {
Douglas Gregor393f2492011-07-22 00:38:23 +00006221 NameInfo.setName(ReadDeclarationName(F, Record, Idx));
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006222 NameInfo.setLoc(ReadSourceLocation(F, Record, Idx));
6223 DeclarationNameLoc DNLoc;
6224 ReadDeclarationNameLoc(F, DNLoc, NameInfo.getName(), Record, Idx);
6225 NameInfo.setInfo(DNLoc);
6226}
6227
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006228void ASTReader::ReadQualifierInfo(ModuleFile &F, QualifierInfo &Info,
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006229 const RecordData &Record, unsigned &Idx) {
Douglas Gregorc22b5ff2011-02-25 02:25:35 +00006230 Info.QualifierLoc = ReadNestedNameSpecifierLoc(F, Record, Idx);
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006231 unsigned NumTPLists = Record[Idx++];
6232 Info.NumTemplParamLists = NumTPLists;
6233 if (NumTPLists) {
Douglas Gregor35942772011-09-09 21:34:22 +00006234 Info.TemplParamLists = new (Context) TemplateParameterList*[NumTPLists];
Argyrios Kyrtzidis40451072010-10-15 18:21:24 +00006235 for (unsigned i=0; i != NumTPLists; ++i)
6236 Info.TemplParamLists[i] = ReadTemplateParameterList(F, Record, Idx);
6237 }
6238}
6239
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006240TemplateName
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006241ASTReader::ReadTemplateName(ModuleFile &F, const RecordData &Record,
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006242 unsigned &Idx) {
Michael J. Spencer20249a12010-10-21 03:16:25 +00006243 TemplateName::NameKind Kind = (TemplateName::NameKind)Record[Idx++];
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006244 switch (Kind) {
6245 case TemplateName::Template:
Douglas Gregor409448c2011-07-21 22:35:25 +00006246 return TemplateName(ReadDeclAs<TemplateDecl>(F, Record, Idx));
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006247
6248 case TemplateName::OverloadedTemplate: {
6249 unsigned size = Record[Idx++];
6250 UnresolvedSet<8> Decls;
6251 while (size--)
Douglas Gregor409448c2011-07-21 22:35:25 +00006252 Decls.addDecl(ReadDeclAs<NamedDecl>(F, Record, Idx));
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006253
Douglas Gregor35942772011-09-09 21:34:22 +00006254 return Context.getOverloadedTemplateName(Decls.begin(), Decls.end());
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006255 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00006256
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006257 case TemplateName::QualifiedTemplate: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006258 NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006259 bool hasTemplKeyword = Record[Idx++];
Douglas Gregor409448c2011-07-21 22:35:25 +00006260 TemplateDecl *Template = ReadDeclAs<TemplateDecl>(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006261 return Context.getQualifiedTemplateName(NNS, hasTemplKeyword, Template);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006262 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00006263
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006264 case TemplateName::DependentTemplate: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006265 NestedNameSpecifier *NNS = ReadNestedNameSpecifier(F, Record, Idx);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006266 if (Record[Idx++]) // isIdentifier
Douglas Gregor35942772011-09-09 21:34:22 +00006267 return Context.getDependentTemplateName(NNS,
Douglas Gregor95eab172011-07-28 20:55:49 +00006268 GetIdentifierInfo(F, Record,
6269 Idx));
Douglas Gregor35942772011-09-09 21:34:22 +00006270 return Context.getDependentTemplateName(NNS,
Argyrios Kyrtzidis17cfded2010-06-28 09:31:42 +00006271 (OverloadedOperatorKind)Record[Idx++]);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006272 }
John McCall14606042011-06-30 08:33:18 +00006273
6274 case TemplateName::SubstTemplateTemplateParm: {
6275 TemplateTemplateParmDecl *param
Douglas Gregor409448c2011-07-21 22:35:25 +00006276 = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
John McCall14606042011-06-30 08:33:18 +00006277 if (!param) return TemplateName();
6278 TemplateName replacement = ReadTemplateName(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006279 return Context.getSubstTemplateTemplateParm(param, replacement);
John McCall14606042011-06-30 08:33:18 +00006280 }
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006281
6282 case TemplateName::SubstTemplateTemplateParmPack: {
6283 TemplateTemplateParmDecl *Param
Douglas Gregor409448c2011-07-21 22:35:25 +00006284 = ReadDeclAs<TemplateTemplateParmDecl>(F, Record, Idx);
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006285 if (!Param)
6286 return TemplateName();
6287
6288 TemplateArgument ArgPack = ReadTemplateArgument(F, Record, Idx);
6289 if (ArgPack.getKind() != TemplateArgument::Pack)
6290 return TemplateName();
6291
Douglas Gregor35942772011-09-09 21:34:22 +00006292 return Context.getSubstTemplateTemplateParmPack(Param, ArgPack);
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006293 }
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006294 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00006295
David Blaikieb219cfc2011-09-23 05:06:16 +00006296 llvm_unreachable("Unhandled template name kind!");
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006297}
6298
6299TemplateArgument
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006300ASTReader::ReadTemplateArgument(ModuleFile &F,
Sebastian Redl577d4792010-07-22 22:43:28 +00006301 const RecordData &Record, unsigned &Idx) {
Douglas Gregora7fc9012011-01-05 18:58:31 +00006302 TemplateArgument::ArgKind Kind = (TemplateArgument::ArgKind)Record[Idx++];
6303 switch (Kind) {
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006304 case TemplateArgument::Null:
6305 return TemplateArgument();
6306 case TemplateArgument::Type:
Douglas Gregor393f2492011-07-22 00:38:23 +00006307 return TemplateArgument(readType(F, Record, Idx));
Eli Friedmand7a6b162012-09-26 02:36:12 +00006308 case TemplateArgument::Declaration: {
6309 ValueDecl *D = ReadDeclAs<ValueDecl>(F, Record, Idx);
6310 bool ForReferenceParam = Record[Idx++];
6311 return TemplateArgument(D, ForReferenceParam);
6312 }
6313 case TemplateArgument::NullPtr:
6314 return TemplateArgument(readType(F, Record, Idx), /*isNullPtr*/true);
Argyrios Kyrtzidisdc767e32010-06-28 09:31:34 +00006315 case TemplateArgument::Integral: {
6316 llvm::APSInt Value = ReadAPSInt(Record, Idx);
Douglas Gregor393f2492011-07-22 00:38:23 +00006317 QualType T = readType(F, Record, Idx);
Benjamin Kramer85524372012-06-07 15:09:51 +00006318 return TemplateArgument(Context, Value, T);
Argyrios Kyrtzidisdc767e32010-06-28 09:31:34 +00006319 }
Douglas Gregora7fc9012011-01-05 18:58:31 +00006320 case TemplateArgument::Template:
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006321 return TemplateArgument(ReadTemplateName(F, Record, Idx));
Douglas Gregora7fc9012011-01-05 18:58:31 +00006322 case TemplateArgument::TemplateExpansion: {
Douglas Gregor1aee05d2011-01-15 06:45:20 +00006323 TemplateName Name = ReadTemplateName(F, Record, Idx);
Douglas Gregor2be29f42011-01-14 23:41:42 +00006324 llvm::Optional<unsigned> NumTemplateExpansions;
6325 if (unsigned NumExpansions = Record[Idx++])
6326 NumTemplateExpansions = NumExpansions - 1;
6327 return TemplateArgument(Name, NumTemplateExpansions);
Douglas Gregorba68eca2011-01-05 17:40:24 +00006328 }
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006329 case TemplateArgument::Expression:
Sebastian Redlc3632732010-10-05 15:59:54 +00006330 return TemplateArgument(ReadExpr(F));
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006331 case TemplateArgument::Pack: {
6332 unsigned NumArgs = Record[Idx++];
Douglas Gregor35942772011-09-09 21:34:22 +00006333 TemplateArgument *Args = new (Context) TemplateArgument[NumArgs];
Douglas Gregor910f8002010-11-07 23:05:16 +00006334 for (unsigned I = 0; I != NumArgs; ++I)
6335 Args[I] = ReadTemplateArgument(F, Record, Idx);
6336 return TemplateArgument(Args, NumArgs);
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006337 }
6338 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00006339
David Blaikieb219cfc2011-09-23 05:06:16 +00006340 llvm_unreachable("Unhandled template argument kind!");
Argyrios Kyrtzidis8731ca72010-06-19 19:29:09 +00006341}
6342
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006343TemplateParameterList *
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006344ASTReader::ReadTemplateParameterList(ModuleFile &F,
Sebastian Redlc3632732010-10-05 15:59:54 +00006345 const RecordData &Record, unsigned &Idx) {
6346 SourceLocation TemplateLoc = ReadSourceLocation(F, Record, Idx);
6347 SourceLocation LAngleLoc = ReadSourceLocation(F, Record, Idx);
6348 SourceLocation RAngleLoc = ReadSourceLocation(F, Record, Idx);
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006349
6350 unsigned NumParams = Record[Idx++];
Chris Lattner5f9e2722011-07-23 10:55:15 +00006351 SmallVector<NamedDecl *, 16> Params;
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006352 Params.reserve(NumParams);
6353 while (NumParams--)
Douglas Gregor409448c2011-07-21 22:35:25 +00006354 Params.push_back(ReadDeclAs<NamedDecl>(F, Record, Idx));
Michael J. Spencer20249a12010-10-21 03:16:25 +00006355
6356 TemplateParameterList* TemplateParams =
Douglas Gregor35942772011-09-09 21:34:22 +00006357 TemplateParameterList::Create(Context, TemplateLoc, LAngleLoc,
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006358 Params.data(), Params.size(), RAngleLoc);
6359 return TemplateParams;
6360}
6361
6362void
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006363ASTReader::
Chris Lattner5f9e2722011-07-23 10:55:15 +00006364ReadTemplateArgumentList(SmallVector<TemplateArgument, 8> &TemplArgs,
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006365 ModuleFile &F, const RecordData &Record,
Sebastian Redlc3632732010-10-05 15:59:54 +00006366 unsigned &Idx) {
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006367 unsigned NumTemplateArgs = Record[Idx++];
6368 TemplArgs.reserve(NumTemplateArgs);
6369 while (NumTemplateArgs--)
Sebastian Redlc3632732010-10-05 15:59:54 +00006370 TemplArgs.push_back(ReadTemplateArgument(F, Record, Idx));
Argyrios Kyrtzidisdd41c142010-06-23 13:48:30 +00006371}
6372
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00006373/// \brief Read a UnresolvedSet structure.
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006374void ASTReader::ReadUnresolvedSet(ModuleFile &F, UnresolvedSetImpl &Set,
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00006375 const RecordData &Record, unsigned &Idx) {
6376 unsigned NumDecls = Record[Idx++];
6377 while (NumDecls--) {
Douglas Gregor409448c2011-07-21 22:35:25 +00006378 NamedDecl *D = ReadDeclAs<NamedDecl>(F, Record, Idx);
Argyrios Kyrtzidis37ffed32010-07-02 11:55:32 +00006379 AccessSpecifier AS = (AccessSpecifier)Record[Idx++];
6380 Set.addDecl(D, AS);
6381 }
6382}
6383
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00006384CXXBaseSpecifier
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006385ASTReader::ReadCXXBaseSpecifier(ModuleFile &F,
Nick Lewycky56062202010-07-26 16:56:01 +00006386 const RecordData &Record, unsigned &Idx) {
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00006387 bool isVirtual = static_cast<bool>(Record[Idx++]);
6388 bool isBaseOfClass = static_cast<bool>(Record[Idx++]);
6389 AccessSpecifier AS = static_cast<AccessSpecifier>(Record[Idx++]);
Sebastian Redlf677ea32011-02-05 19:23:19 +00006390 bool inheritConstructors = static_cast<bool>(Record[Idx++]);
Sebastian Redlc3632732010-10-05 15:59:54 +00006391 TypeSourceInfo *TInfo = GetTypeSourceInfo(F, Record, Idx);
6392 SourceRange Range = ReadSourceRange(F, Record, Idx);
Douglas Gregorf90b27a2011-01-03 22:36:02 +00006393 SourceLocation EllipsisLoc = ReadSourceLocation(F, Record, Idx);
Sebastian Redlf677ea32011-02-05 19:23:19 +00006394 CXXBaseSpecifier Result(Range, isVirtual, isBaseOfClass, AS, TInfo,
Douglas Gregorf90b27a2011-01-03 22:36:02 +00006395 EllipsisLoc);
Sebastian Redlf677ea32011-02-05 19:23:19 +00006396 Result.setInheritConstructors(inheritConstructors);
6397 return Result;
Argyrios Kyrtzidis0745d0a2010-07-02 23:30:27 +00006398}
6399
Sean Huntcbb67482011-01-08 20:30:50 +00006400std::pair<CXXCtorInitializer **, unsigned>
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006401ASTReader::ReadCXXCtorInitializers(ModuleFile &F, const RecordData &Record,
Sean Huntcbb67482011-01-08 20:30:50 +00006402 unsigned &Idx) {
6403 CXXCtorInitializer **CtorInitializers = 0;
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006404 unsigned NumInitializers = Record[Idx++];
6405 if (NumInitializers) {
Sean Huntcbb67482011-01-08 20:30:50 +00006406 CtorInitializers
Douglas Gregor35942772011-09-09 21:34:22 +00006407 = new (Context) CXXCtorInitializer*[NumInitializers];
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006408 for (unsigned i=0; i != NumInitializers; ++i) {
Douglas Gregor76852c22011-11-01 01:16:03 +00006409 TypeSourceInfo *TInfo = 0;
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006410 bool IsBaseVirtual = false;
6411 FieldDecl *Member = 0;
Francois Pichet00eb3f92010-12-04 09:14:42 +00006412 IndirectFieldDecl *IndirectMember = 0;
Michael J. Spencer20249a12010-10-21 03:16:25 +00006413
Sean Hunt156b6402011-05-04 01:19:08 +00006414 CtorInitializerType Type = (CtorInitializerType)Record[Idx++];
6415 switch (Type) {
Douglas Gregor76852c22011-11-01 01:16:03 +00006416 case CTOR_INITIALIZER_BASE:
6417 TInfo = GetTypeSourceInfo(F, Record, Idx);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006418 IsBaseVirtual = Record[Idx++];
Sean Hunt156b6402011-05-04 01:19:08 +00006419 break;
Douglas Gregor76852c22011-11-01 01:16:03 +00006420
6421 case CTOR_INITIALIZER_DELEGATING:
6422 TInfo = GetTypeSourceInfo(F, Record, Idx);
Sean Hunt156b6402011-05-04 01:19:08 +00006423 break;
6424
6425 case CTOR_INITIALIZER_MEMBER:
Douglas Gregor409448c2011-07-21 22:35:25 +00006426 Member = ReadDeclAs<FieldDecl>(F, Record, Idx);
Sean Hunt156b6402011-05-04 01:19:08 +00006427 break;
6428
6429 case CTOR_INITIALIZER_INDIRECT_MEMBER:
Douglas Gregor409448c2011-07-21 22:35:25 +00006430 IndirectMember = ReadDeclAs<IndirectFieldDecl>(F, Record, Idx);
Sean Hunt156b6402011-05-04 01:19:08 +00006431 break;
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006432 }
Sean Hunt156b6402011-05-04 01:19:08 +00006433
Douglas Gregor3fb9e4b2011-01-04 00:32:56 +00006434 SourceLocation MemberOrEllipsisLoc = ReadSourceLocation(F, Record, Idx);
Sebastian Redlc3632732010-10-05 15:59:54 +00006435 Expr *Init = ReadExpr(F);
Sebastian Redlc3632732010-10-05 15:59:54 +00006436 SourceLocation LParenLoc = ReadSourceLocation(F, Record, Idx);
6437 SourceLocation RParenLoc = ReadSourceLocation(F, Record, Idx);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006438 bool IsWritten = Record[Idx++];
6439 unsigned SourceOrderOrNumArrayIndices;
Chris Lattner5f9e2722011-07-23 10:55:15 +00006440 SmallVector<VarDecl *, 8> Indices;
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006441 if (IsWritten) {
6442 SourceOrderOrNumArrayIndices = Record[Idx++];
6443 } else {
6444 SourceOrderOrNumArrayIndices = Record[Idx++];
6445 Indices.reserve(SourceOrderOrNumArrayIndices);
6446 for (unsigned i=0; i != SourceOrderOrNumArrayIndices; ++i)
Douglas Gregor409448c2011-07-21 22:35:25 +00006447 Indices.push_back(ReadDeclAs<VarDecl>(F, Record, Idx));
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006448 }
Michael J. Spencer20249a12010-10-21 03:16:25 +00006449
Sean Huntcbb67482011-01-08 20:30:50 +00006450 CXXCtorInitializer *BOMInit;
Sean Hunt156b6402011-05-04 01:19:08 +00006451 if (Type == CTOR_INITIALIZER_BASE) {
Douglas Gregor76852c22011-11-01 01:16:03 +00006452 BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, IsBaseVirtual,
Sean Huntcbb67482011-01-08 20:30:50 +00006453 LParenLoc, Init, RParenLoc,
6454 MemberOrEllipsisLoc);
Sean Hunt156b6402011-05-04 01:19:08 +00006455 } else if (Type == CTOR_INITIALIZER_DELEGATING) {
Douglas Gregor76852c22011-11-01 01:16:03 +00006456 BOMInit = new (Context) CXXCtorInitializer(Context, TInfo, LParenLoc,
6457 Init, RParenLoc);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006458 } else if (IsWritten) {
Francois Pichet00eb3f92010-12-04 09:14:42 +00006459 if (Member)
Douglas Gregor35942772011-09-09 21:34:22 +00006460 BOMInit = new (Context) CXXCtorInitializer(Context, Member, MemberOrEllipsisLoc,
Sean Huntcbb67482011-01-08 20:30:50 +00006461 LParenLoc, Init, RParenLoc);
Francois Pichet00eb3f92010-12-04 09:14:42 +00006462 else
Douglas Gregor35942772011-09-09 21:34:22 +00006463 BOMInit = new (Context) CXXCtorInitializer(Context, IndirectMember,
Sean Huntcbb67482011-01-08 20:30:50 +00006464 MemberOrEllipsisLoc, LParenLoc,
6465 Init, RParenLoc);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006466 } else {
Douglas Gregor35942772011-09-09 21:34:22 +00006467 BOMInit = CXXCtorInitializer::Create(Context, Member, MemberOrEllipsisLoc,
Sean Huntcbb67482011-01-08 20:30:50 +00006468 LParenLoc, Init, RParenLoc,
6469 Indices.data(), Indices.size());
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006470 }
6471
Argyrios Kyrtzidisf84cde12010-09-06 19:04:27 +00006472 if (IsWritten)
6473 BOMInit->setSourceOrder(SourceOrderOrNumArrayIndices);
Sean Huntcbb67482011-01-08 20:30:50 +00006474 CtorInitializers[i] = BOMInit;
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006475 }
6476 }
6477
Sean Huntcbb67482011-01-08 20:30:50 +00006478 return std::make_pair(CtorInitializers, NumInitializers);
Argyrios Kyrtzidis8e706f42010-08-09 10:54:12 +00006479}
6480
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006481NestedNameSpecifier *
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006482ASTReader::ReadNestedNameSpecifier(ModuleFile &F,
Douglas Gregor409448c2011-07-21 22:35:25 +00006483 const RecordData &Record, unsigned &Idx) {
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006484 unsigned N = Record[Idx++];
6485 NestedNameSpecifier *NNS = 0, *Prev = 0;
6486 for (unsigned I = 0; I != N; ++I) {
6487 NestedNameSpecifier::SpecifierKind Kind
6488 = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
6489 switch (Kind) {
6490 case NestedNameSpecifier::Identifier: {
Douglas Gregor95eab172011-07-28 20:55:49 +00006491 IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006492 NNS = NestedNameSpecifier::Create(Context, Prev, II);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006493 break;
6494 }
6495
6496 case NestedNameSpecifier::Namespace: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006497 NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006498 NNS = NestedNameSpecifier::Create(Context, Prev, NS);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006499 break;
6500 }
6501
Douglas Gregor14aba762011-02-24 02:36:08 +00006502 case NestedNameSpecifier::NamespaceAlias: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006503 NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006504 NNS = NestedNameSpecifier::Create(Context, Prev, Alias);
Douglas Gregor14aba762011-02-24 02:36:08 +00006505 break;
6506 }
6507
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006508 case NestedNameSpecifier::TypeSpec:
6509 case NestedNameSpecifier::TypeSpecWithTemplate: {
Douglas Gregor393f2492011-07-22 00:38:23 +00006510 const Type *T = readType(F, Record, Idx).getTypePtrOrNull();
Douglas Gregor1ab55e92010-12-10 17:03:06 +00006511 if (!T)
6512 return 0;
6513
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006514 bool Template = Record[Idx++];
Douglas Gregor35942772011-09-09 21:34:22 +00006515 NNS = NestedNameSpecifier::Create(Context, Prev, Template, T);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006516 break;
6517 }
6518
6519 case NestedNameSpecifier::Global: {
Douglas Gregor35942772011-09-09 21:34:22 +00006520 NNS = NestedNameSpecifier::GlobalSpecifier(Context);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006521 // No associated value, and there can't be a prefix.
6522 break;
6523 }
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006524 }
Argyrios Kyrtzidisd2bb2c02010-07-07 15:46:30 +00006525 Prev = NNS;
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006526 }
6527 return NNS;
6528}
6529
Douglas Gregordc355712011-02-25 00:36:19 +00006530NestedNameSpecifierLoc
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006531ASTReader::ReadNestedNameSpecifierLoc(ModuleFile &F, const RecordData &Record,
Douglas Gregordc355712011-02-25 00:36:19 +00006532 unsigned &Idx) {
6533 unsigned N = Record[Idx++];
Douglas Gregor5f791bb2011-02-28 23:58:31 +00006534 NestedNameSpecifierLocBuilder Builder;
Douglas Gregordc355712011-02-25 00:36:19 +00006535 for (unsigned I = 0; I != N; ++I) {
6536 NestedNameSpecifier::SpecifierKind Kind
6537 = (NestedNameSpecifier::SpecifierKind)Record[Idx++];
6538 switch (Kind) {
6539 case NestedNameSpecifier::Identifier: {
Douglas Gregor95eab172011-07-28 20:55:49 +00006540 IdentifierInfo *II = GetIdentifierInfo(F, Record, Idx);
Douglas Gregordc355712011-02-25 00:36:19 +00006541 SourceRange Range = ReadSourceRange(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006542 Builder.Extend(Context, II, Range.getBegin(), Range.getEnd());
Douglas Gregordc355712011-02-25 00:36:19 +00006543 break;
6544 }
6545
6546 case NestedNameSpecifier::Namespace: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006547 NamespaceDecl *NS = ReadDeclAs<NamespaceDecl>(F, Record, Idx);
Douglas Gregordc355712011-02-25 00:36:19 +00006548 SourceRange Range = ReadSourceRange(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006549 Builder.Extend(Context, NS, Range.getBegin(), Range.getEnd());
Douglas Gregordc355712011-02-25 00:36:19 +00006550 break;
6551 }
6552
6553 case NestedNameSpecifier::NamespaceAlias: {
Douglas Gregor409448c2011-07-21 22:35:25 +00006554 NamespaceAliasDecl *Alias =ReadDeclAs<NamespaceAliasDecl>(F, Record, Idx);
Douglas Gregordc355712011-02-25 00:36:19 +00006555 SourceRange Range = ReadSourceRange(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006556 Builder.Extend(Context, Alias, Range.getBegin(), Range.getEnd());
Douglas Gregordc355712011-02-25 00:36:19 +00006557 break;
6558 }
6559
6560 case NestedNameSpecifier::TypeSpec:
6561 case NestedNameSpecifier::TypeSpecWithTemplate: {
Douglas Gregordc355712011-02-25 00:36:19 +00006562 bool Template = Record[Idx++];
6563 TypeSourceInfo *T = GetTypeSourceInfo(F, Record, Idx);
6564 if (!T)
6565 return NestedNameSpecifierLoc();
Douglas Gregordc355712011-02-25 00:36:19 +00006566 SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
Douglas Gregor5f791bb2011-02-28 23:58:31 +00006567
6568 // FIXME: 'template' keyword location not saved anywhere, so we fake it.
Douglas Gregor35942772011-09-09 21:34:22 +00006569 Builder.Extend(Context,
Douglas Gregor5f791bb2011-02-28 23:58:31 +00006570 Template? T->getTypeLoc().getBeginLoc() : SourceLocation(),
6571 T->getTypeLoc(), ColonColonLoc);
Douglas Gregordc355712011-02-25 00:36:19 +00006572 break;
6573 }
6574
6575 case NestedNameSpecifier::Global: {
Douglas Gregordc355712011-02-25 00:36:19 +00006576 SourceLocation ColonColonLoc = ReadSourceLocation(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006577 Builder.MakeGlobal(Context, ColonColonLoc);
Douglas Gregordc355712011-02-25 00:36:19 +00006578 break;
6579 }
6580 }
Douglas Gregordc355712011-02-25 00:36:19 +00006581 }
6582
Douglas Gregor35942772011-09-09 21:34:22 +00006583 return Builder.getWithLocInContext(Context);
Douglas Gregordc355712011-02-25 00:36:19 +00006584}
6585
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006586SourceRange
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006587ASTReader::ReadSourceRange(ModuleFile &F, const RecordData &Record,
Sebastian Redlc3632732010-10-05 15:59:54 +00006588 unsigned &Idx) {
6589 SourceLocation beg = ReadSourceLocation(F, Record, Idx);
6590 SourceLocation end = ReadSourceLocation(F, Record, Idx);
Daniel Dunbar8ee59392010-06-02 15:47:10 +00006591 return SourceRange(beg, end);
Chris Lattner6ad9ac02010-05-07 21:43:38 +00006592}
6593
Douglas Gregor0a2b45e2009-04-13 18:14:40 +00006594/// \brief Read an integral value
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006595llvm::APInt ASTReader::ReadAPInt(const RecordData &Record, unsigned &Idx) {
Douglas Gregor0a2b45e2009-04-13 18:14:40 +00006596 unsigned BitWidth = Record[Idx++];
6597 unsigned NumWords = llvm::APInt::getNumWords(BitWidth);
6598 llvm::APInt Result(BitWidth, NumWords, &Record[Idx]);
6599 Idx += NumWords;
6600 return Result;
6601}
6602
6603/// \brief Read a signed integral value
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006604llvm::APSInt ASTReader::ReadAPSInt(const RecordData &Record, unsigned &Idx) {
Douglas Gregor0a2b45e2009-04-13 18:14:40 +00006605 bool isUnsigned = Record[Idx++];
6606 return llvm::APSInt(ReadAPInt(Record, Idx), isUnsigned);
6607}
6608
Douglas Gregor17fc2232009-04-14 21:55:33 +00006609/// \brief Read a floating-point value
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006610llvm::APFloat ASTReader::ReadAPFloat(const RecordData &Record, unsigned &Idx) {
Douglas Gregor17fc2232009-04-14 21:55:33 +00006611 return llvm::APFloat(ReadAPInt(Record, Idx));
6612}
6613
Douglas Gregor68a2eb02009-04-15 21:30:51 +00006614// \brief Read a string
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006615std::string ASTReader::ReadString(const RecordData &Record, unsigned &Idx) {
Douglas Gregor68a2eb02009-04-15 21:30:51 +00006616 unsigned Len = Record[Idx++];
Jay Foadbeaaccd2009-05-21 09:52:38 +00006617 std::string Result(Record.data() + Idx, Record.data() + Idx + Len);
Douglas Gregor68a2eb02009-04-15 21:30:51 +00006618 Idx += Len;
6619 return Result;
6620}
6621
Douglas Gregor0a0d2b12011-03-23 00:50:03 +00006622VersionTuple ASTReader::ReadVersionTuple(const RecordData &Record,
6623 unsigned &Idx) {
6624 unsigned Major = Record[Idx++];
6625 unsigned Minor = Record[Idx++];
6626 unsigned Subminor = Record[Idx++];
6627 if (Minor == 0)
6628 return VersionTuple(Major);
6629 if (Subminor == 0)
6630 return VersionTuple(Major, Minor - 1);
6631 return VersionTuple(Major, Minor - 1, Subminor - 1);
6632}
6633
Douglas Gregor1a4761e2011-11-30 23:21:26 +00006634CXXTemporary *ASTReader::ReadCXXTemporary(ModuleFile &F,
Douglas Gregor409448c2011-07-21 22:35:25 +00006635 const RecordData &Record,
Chris Lattnerd2598362010-05-10 00:25:06 +00006636 unsigned &Idx) {
Douglas Gregor409448c2011-07-21 22:35:25 +00006637 CXXDestructorDecl *Decl = ReadDeclAs<CXXDestructorDecl>(F, Record, Idx);
Douglas Gregor35942772011-09-09 21:34:22 +00006638 return CXXTemporary::Create(Context, Decl);
Chris Lattnerd2598362010-05-10 00:25:06 +00006639}
6640
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006641DiagnosticBuilder ASTReader::Diag(unsigned DiagID) {
Douglas Gregore1d918e2009-04-10 23:10:45 +00006642 return Diag(SourceLocation(), DiagID);
6643}
6644
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006645DiagnosticBuilder ASTReader::Diag(SourceLocation Loc, unsigned DiagID) {
Argyrios Kyrtzidis33e4e702010-11-18 20:06:41 +00006646 return Diags.Report(Loc, DiagID);
Douglas Gregor0a0428e2009-04-10 20:39:37 +00006647}
Douglas Gregor025452f2009-04-17 00:04:06 +00006648
Douglas Gregor668c1a42009-04-21 22:25:48 +00006649/// \brief Retrieve the identifier table associated with the
6650/// preprocessor.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006651IdentifierTable &ASTReader::getIdentifierTable() {
Douglas Gregor712f2fc2011-09-09 22:02:16 +00006652 return PP.getIdentifierTable();
Douglas Gregor668c1a42009-04-21 22:25:48 +00006653}
6654
Douglas Gregor025452f2009-04-17 00:04:06 +00006655/// \brief Record that the given ID maps to the given switch-case
6656/// statement.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006657void ASTReader::RecordSwitchCaseID(SwitchCase *SC, unsigned ID) {
Argyrios Kyrtzidisb88acb02012-05-04 01:49:36 +00006658 assert((*CurrSwitchCaseStmts)[ID] == 0 &&
6659 "Already have a SwitchCase with this ID");
6660 (*CurrSwitchCaseStmts)[ID] = SC;
Douglas Gregor025452f2009-04-17 00:04:06 +00006661}
6662
6663/// \brief Retrieve the switch-case statement with the given ID.
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006664SwitchCase *ASTReader::getSwitchCaseWithID(unsigned ID) {
Argyrios Kyrtzidisb88acb02012-05-04 01:49:36 +00006665 assert((*CurrSwitchCaseStmts)[ID] != 0 && "No SwitchCase with this ID");
6666 return (*CurrSwitchCaseStmts)[ID];
Douglas Gregor025452f2009-04-17 00:04:06 +00006667}
Douglas Gregor1de05fe2009-04-17 18:18:49 +00006668
Argyrios Kyrtzidise09a2752010-10-28 09:29:32 +00006669void ASTReader::ClearSwitchCaseIDs() {
Argyrios Kyrtzidisb88acb02012-05-04 01:49:36 +00006670 CurrSwitchCaseStmts->clear();
Argyrios Kyrtzidise09a2752010-10-28 09:29:32 +00006671}
6672
Dmitri Gribenkoaa0cd852012-06-20 00:34:58 +00006673void ASTReader::ReadComments() {
Dmitri Gribenko811c8202012-07-06 18:19:34 +00006674 std::vector<RawComment *> Comments;
Dmitri Gribenkoaa0cd852012-06-20 00:34:58 +00006675 for (SmallVectorImpl<std::pair<llvm::BitstreamCursor,
6676 serialization::ModuleFile *> >::iterator
6677 I = CommentsCursors.begin(),
6678 E = CommentsCursors.end();
6679 I != E; ++I) {
6680 llvm::BitstreamCursor &Cursor = I->first;
6681 serialization::ModuleFile &F = *I->second;
6682 SavedStreamPosition SavedPosition(Cursor);
6683
6684 RecordData Record;
6685 while (true) {
6686 unsigned Code = Cursor.ReadCode();
6687 if (Code == llvm::bitc::END_BLOCK)
6688 break;
6689
6690 if (Code == llvm::bitc::ENTER_SUBBLOCK) {
6691 // No known subblocks, always skip them.
6692 Cursor.ReadSubBlockID();
6693 if (Cursor.SkipBlock()) {
6694 Error("malformed block record in AST file");
6695 return;
6696 }
6697 continue;
6698 }
6699
6700 if (Code == llvm::bitc::DEFINE_ABBREV) {
6701 Cursor.ReadAbbrevRecord();
6702 continue;
6703 }
6704
6705 // Read a record.
6706 Record.clear();
6707 switch ((CommentRecordTypes) Cursor.ReadRecord(Code, Record)) {
Chandler Carruth13691bb2012-06-20 06:47:54 +00006708 case COMMENTS_RAW_COMMENT: {
6709 unsigned Idx = 0;
6710 SourceRange SR = ReadSourceRange(F, Record, Idx);
6711 RawComment::CommentKind Kind =
6712 (RawComment::CommentKind) Record[Idx++];
6713 bool IsTrailingComment = Record[Idx++];
6714 bool IsAlmostTrailingComment = Record[Idx++];
Dmitri Gribenko811c8202012-07-06 18:19:34 +00006715 Comments.push_back(new (Context) RawComment(SR, Kind,
6716 IsTrailingComment,
6717 IsAlmostTrailingComment));
Chandler Carruth13691bb2012-06-20 06:47:54 +00006718 break;
Dmitri Gribenkoaa0cd852012-06-20 00:34:58 +00006719 }
6720 }
6721 }
6722 }
6723 Context.Comments.addCommentsToFront(Comments);
6724}
6725
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006726void ASTReader::finishPendingActions() {
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00006727 while (!PendingIdentifierInfos.empty() || !PendingDeclChains.empty() ||
6728 !PendingMacroIDs.empty()) {
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006729 // If any identifiers with corresponding top-level declarations have
6730 // been loaded, load those declarations now.
6731 while (!PendingIdentifierInfos.empty()) {
6732 SetGloballyVisibleDecls(PendingIdentifierInfos.front().II,
6733 PendingIdentifierInfos.front().DeclIDs, true);
6734 PendingIdentifierInfos.pop_front();
6735 }
6736
Douglas Gregora1be2782011-12-17 23:38:30 +00006737 // Load pending declaration chains.
6738 for (unsigned I = 0; I != PendingDeclChains.size(); ++I) {
6739 loadPendingDeclChain(PendingDeclChains[I]);
Douglas Gregor56ca8a92012-01-17 19:21:53 +00006740 PendingDeclChainsKnown.erase(PendingDeclChains[I]);
Douglas Gregora1be2782011-12-17 23:38:30 +00006741 }
6742 PendingDeclChains.clear();
Douglas Gregor6c6c54a2012-10-11 00:46:49 +00006743
6744 // Load any pending macro definitions.
Douglas Gregore9652bf2012-10-11 17:31:34 +00006745 for (unsigned I = 0; I != PendingMacroIDs.size(); ++I) {
6746 // FIXME: std::move here
6747 SmallVector<MacroID, 2> GlobalIDs = PendingMacroIDs.begin()[I].second;
Douglas Gregor3ab50fe2012-10-11 17:41:54 +00006748 MacroInfo *Hint = 0;
Douglas Gregore9652bf2012-10-11 17:31:34 +00006749 for (unsigned IDIdx = 0, NumIDs = GlobalIDs.size(); IDIdx != NumIDs;
6750 ++IDIdx) {
Douglas Gregor3ab50fe2012-10-11 17:41:54 +00006751 Hint = getMacro(GlobalIDs[IDIdx], Hint);
Douglas Gregore9652bf2012-10-11 17:31:34 +00006752 }
6753 }
6754 PendingMacroIDs.clear();
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006755 }
Douglas Gregorfc529f72011-12-19 19:00:47 +00006756
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00006757 // If we deserialized any C++ or Objective-C class definitions, any
6758 // Objective-C protocol definitions, or any redeclarable templates, make sure
6759 // that all redeclarations point to the definitions. Note that this can only
6760 // happen now, after the redeclaration chains have been fully wired.
Douglas Gregorfc529f72011-12-19 19:00:47 +00006761 for (llvm::SmallPtrSet<Decl *, 4>::iterator D = PendingDefinitions.begin(),
6762 DEnd = PendingDefinitions.end();
6763 D != DEnd; ++D) {
Douglas Gregor56ca8a92012-01-17 19:21:53 +00006764 if (TagDecl *TD = dyn_cast<TagDecl>(*D)) {
6765 if (const TagType *TagT = dyn_cast<TagType>(TD->TypeForDecl)) {
6766 // Make sure that the TagType points at the definition.
6767 const_cast<TagType*>(TagT)->decl = TD;
6768 }
Douglas Gregorfc529f72011-12-19 19:00:47 +00006769
Douglas Gregor56ca8a92012-01-17 19:21:53 +00006770 if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(*D)) {
6771 for (CXXRecordDecl::redecl_iterator R = RD->redecls_begin(),
6772 REnd = RD->redecls_end();
6773 R != REnd; ++R)
6774 cast<CXXRecordDecl>(*R)->DefinitionData = RD->DefinitionData;
6775
6776 }
6777
Douglas Gregorfc529f72011-12-19 19:00:47 +00006778 continue;
6779 }
6780
Douglas Gregor1d784b22012-01-01 19:51:50 +00006781 if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(*D)) {
Douglas Gregor56ca8a92012-01-17 19:21:53 +00006782 // Make sure that the ObjCInterfaceType points at the definition.
6783 const_cast<ObjCInterfaceType *>(cast<ObjCInterfaceType>(ID->TypeForDecl))
6784 ->Decl = ID;
6785
Douglas Gregor1d784b22012-01-01 19:51:50 +00006786 for (ObjCInterfaceDecl::redecl_iterator R = ID->redecls_begin(),
6787 REnd = ID->redecls_end();
6788 R != REnd; ++R)
6789 R->Data = ID->Data;
6790
6791 continue;
6792 }
6793
Douglas Gregor7c99bb5c2012-01-14 15:13:49 +00006794 if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(*D)) {
6795 for (ObjCProtocolDecl::redecl_iterator R = PD->redecls_begin(),
6796 REnd = PD->redecls_end();
6797 R != REnd; ++R)
6798 R->Data = PD->Data;
6799
6800 continue;
6801 }
6802
6803 RedeclarableTemplateDecl *RTD
6804 = cast<RedeclarableTemplateDecl>(*D)->getCanonicalDecl();
6805 for (RedeclarableTemplateDecl::redecl_iterator R = RTD->redecls_begin(),
6806 REnd = RTD->redecls_end();
Douglas Gregorfc529f72011-12-19 19:00:47 +00006807 R != REnd; ++R)
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00006808 R->Common = RTD->Common;
Douglas Gregorfc529f72011-12-19 19:00:47 +00006809 }
6810 PendingDefinitions.clear();
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00006811
6812 // Load the bodies of any functions or methods we've encountered. We do
6813 // this now (delayed) so that we can be sure that the declaration chains
6814 // have been fully wired up.
Douglas Gregorce12d2f2012-10-09 17:50:23 +00006815 for (PendingBodiesMap::iterator PB = PendingBodies.begin(),
6816 PBEnd = PendingBodies.end();
Douglas Gregor5456b0fe2012-10-09 17:21:28 +00006817 PB != PBEnd; ++PB) {
6818 if (FunctionDecl *FD = dyn_cast<FunctionDecl>(PB->first)) {
6819 // FIXME: Check for =delete/=default?
6820 // FIXME: Complain about ODR violations here?
6821 if (!getContext().getLangOpts().Modules || !FD->hasBody())
6822 FD->setLazyBody(PB->second);
6823 continue;
6824 }
6825
6826 ObjCMethodDecl *MD = cast<ObjCMethodDecl>(PB->first);
6827 if (!getContext().getLangOpts().Modules || !MD->hasBody())
6828 MD->setLazyBody(PB->second);
6829 }
6830 PendingBodies.clear();
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006831}
6832
Sebastian Redlc43b54c2010-08-18 23:56:43 +00006833void ASTReader::FinishedDeserializing() {
Argyrios Kyrtzidis29ee3a22010-07-30 10:03:16 +00006834 assert(NumCurrentElementsDeserializing &&
6835 "FinishedDeserializing not paired with StartedDeserializing");
6836 if (NumCurrentElementsDeserializing == 1) {
Argyrios Kyrtzidis44d2dbd2012-02-09 07:31:52 +00006837 // We decrease NumCurrentElementsDeserializing only after pending actions
6838 // are finished, to avoid recursively re-calling finishPendingActions().
6839 finishPendingActions();
6840 }
6841 --NumCurrentElementsDeserializing;
Argyrios Kyrtzidis71168332011-12-17 04:13:28 +00006842
Argyrios Kyrtzidis44d2dbd2012-02-09 07:31:52 +00006843 if (NumCurrentElementsDeserializing == 0 &&
6844 Consumer && !PassingDeclsToConsumer) {
6845 // Guard variable to avoid recursively redoing the process of passing
6846 // decls to consumer.
6847 SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer,
6848 true);
Argyrios Kyrtzidis71168332011-12-17 04:13:28 +00006849
Argyrios Kyrtzidis44d2dbd2012-02-09 07:31:52 +00006850 while (!InterestingDecls.empty()) {
Argyrios Kyrtzidis8d39c3d2011-11-30 23:18:26 +00006851 // We are not in recursive loading, so it's safe to pass the "interesting"
6852 // decls to the consumer.
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006853 Decl *D = InterestingDecls.front();
6854 InterestingDecls.pop_front();
Argyrios Kyrtzidis91707832011-12-17 08:11:25 +00006855 PassInterestingDeclToConsumer(D);
6856 }
Douglas Gregord89275b2009-07-06 18:54:52 +00006857 }
Douglas Gregord89275b2009-07-06 18:54:52 +00006858}
Douglas Gregor501c1032010-08-19 00:28:17 +00006859
Douglas Gregorf8a1e512011-09-02 00:26:20 +00006860ASTReader::ASTReader(Preprocessor &PP, ASTContext &Context,
Douglas Gregor832d6202011-07-22 16:35:34 +00006861 StringRef isysroot, bool DisableValidation,
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +00006862 bool DisableStatCache, bool AllowASTWithCompilerErrors)
Sebastian Redle1dde812010-08-24 00:50:04 +00006863 : Listener(new PCHValidator(PP, *this)), DeserializationListener(0),
6864 SourceMgr(PP.getSourceManager()), FileMgr(PP.getFileManager()),
Douglas Gregor712f2fc2011-09-09 22:02:16 +00006865 Diags(PP.getDiagnostics()), SemaObj(0), PP(PP), Context(Context),
Argyrios Kyrtzidisd64c26f2012-10-03 01:58:42 +00006866 Consumer(0), ModuleMgr(PP.getFileManager()),
Douglas Gregorcaed0602012-10-18 21:31:35 +00006867 isysroot(isysroot), DisableValidation(DisableValidation),
Argyrios Kyrtzidisbef35c92012-03-07 01:51:17 +00006868 DisableStatCache(DisableStatCache),
6869 AllowASTWithCompilerErrors(AllowASTWithCompilerErrors),
Argyrios Kyrtzidisb88acb02012-05-04 01:49:36 +00006870 CurrentGeneration(0), CurrSwitchCaseStmts(&SwitchCaseStmts),
6871 NumStatHits(0), NumStatMisses(0),
Douglas Gregorf62d43d2011-07-19 16:10:42 +00006872 NumSLocEntriesRead(0), TotalNumSLocEntries(0),
Douglas Gregor8ef6c8c2011-02-05 19:42:43 +00006873 NumStatementsRead(0), TotalNumStatements(0), NumMacrosRead(0),
6874 TotalNumMacros(0), NumSelectorsRead(0), NumMethodPoolEntriesRead(0),
6875 NumMethodPoolMisses(0), TotalNumMethodPoolEntries(0),
6876 NumLexicalDeclContextsRead(0), TotalLexicalDeclContexts(0),
Jonathan D. Turner1da90142011-07-21 21:15:19 +00006877 NumVisibleDeclContextsRead(0), TotalVisibleDeclContexts(0),
6878 TotalModulesSizeInBits(0), NumCurrentElementsDeserializing(0),
Argyrios Kyrtzidis44d2dbd2012-02-09 07:31:52 +00006879 PassingDeclsToConsumer(false),
Jonathan D. Turner1da90142011-07-21 21:15:19 +00006880 NumCXXBaseSpecifiersLoaded(0)
Douglas Gregor8ef6c8c2011-02-05 19:42:43 +00006881{
Douglas Gregorf62d43d2011-07-19 16:10:42 +00006882 SourceMgr.setExternalSLocEntrySource(this);
Sebastian Redle1dde812010-08-24 00:50:04 +00006883}
6884
Sebastian Redle1dde812010-08-24 00:50:04 +00006885ASTReader::~ASTReader() {
Sebastian Redle1dde812010-08-24 00:50:04 +00006886 for (DeclContextVisibleUpdatesPending::iterator
6887 I = PendingVisibleUpdates.begin(),
6888 E = PendingVisibleUpdates.end();
6889 I != E; ++I) {
6890 for (DeclContextVisibleUpdates::iterator J = I->second.begin(),
6891 F = I->second.end();
6892 J != F; ++J)
Benjamin Kramerb1758c62012-04-15 12:36:49 +00006893 delete J->first;
Sebastian Redle1dde812010-08-24 00:50:04 +00006894 }
6895}